On 23 November 2018, B. Sathianathan was officially announced as Selangor's new coach for the upcoming season.[5][6][7] He appeared for his first press conference in front of the media on that day.[8][9][10][11]
On 7 December, Selangor completed the transfer of Messi Terengganu winger Faiz Nasir from Terengganu on a free transfer.[23] Two days later, the club confirmed an agreement with Terengganu too for the transfer of midfielderLatiff Suhaimi on a free deal.[24]
Selangor also confirmed the signing of Azreen Zulkafali from FELDA United; he was along with new coach B. Sathianathan and K. Prabakaran, migrate to find a new challenge with the new club.[25]
Selangor have released their four foreign players last season, Ilham Armaiyn, Evan Dimas, Willian Pacheco and Alfonso Cruz, after their contracts were not renewed by the club.[31][32] On 16 December, Selangor confirmed that Rufino Segovia still remains with the team, and it was announced that Spanish striker agreed to a contract extension with the club for a further a one-year until 2019, with an option of an additional year.[33][34]
On 1 January 2019, Selangor confirmed the transfer of their new foreign players, Antonio German and Endrick on a free transfer.[35][36][37]
On 10 January, Selangor announced the signing of Australian defender Taylor Regan from Adelaide United.[42][43][44] It was the last signing of foreign player for the club.
A deadline transfer on 20 February 2019, Selangor make a decision to release one of foreign players, Antonio German, after his poor performance in the last three games in league matches, make the club take the action on him.[45] Then, the club bring former Kedah foreign player, Sandro da Silva to replace him.[46][47]
Four days later, Selangor faced UiTM, at MPSJ Stadium, Subang Jaya. However, the club has yet to win any victories after losing 2–1 against from premier league (second division) club.
Three days later, Selangor continued their friendly matches against Kuala Lumpur. Finally, Selangor get the first victory after won by 3–2, with a goal scored by Sean Selvaraj, Wan Zack Haikal and Amri Yahyah.
On 9 January 2019, Selangor meet UKM for the next game at INSPEN Stadium in Bangi, which UKM won by 5–2. It was the third defeat for the club in pre-season friendly after five matches.
Two days later, Selangor faced the champions of the Champions League Selangor, Puchong Fuerza at the 3K Sports Complex, Subang Jaya. The Red Giants thrashed with a big wins by 6–0. It was the team's second win in six friendly matches.
The next day, the team played a second match tour against the Chonburi at the same place, which they drew 1–1 with goals from Faiz Nasir (Selangor) and Lukian (Chonburi).
In the last tour match on 17 January, the Red Giants gained the second victory against the Thai League 2 club, Thai Honda by 2–1, which means the club successfully compete the tour match without defeat (two wins, one draw).
Without any victories in two matches, Selangor suffered a 0–4 loss against brothers PKNS on 17 February 2019.[58][59]
The away game at Pahang, on 24 February 2019, ended in a 1–1 draw with the lone goal coming from Rufino Segovia.[60] After four league matches, Selangor still deadlocked to find their first win in the league.
March
On 1 March 2019, Selangor suffered their second consecutive loss without a win after five matches in the league, as they were out-played by Johor Darul Ta'zim in a 2–4 home defeat.[61][62][63]
On 11 March 2019, Selangor finally gained the first victory in the league, after beat the rival Kuala Lumpur by 3–2.[64][65] They behind two goals in the first half, but they rise up in the second half, with a goals from Sandro, Syazwan Zainon and Amri Yahyah.
After international break, Selangor continued their league match on 29 March 2019 with a narrow 1–0 victory against Terengganu at home, with a lone goal from Faiz Nasir.[66]
A home match against Perak in the league match on 12 April ended in a 1–1 draw, which Selangor goal scored by Sandro, and the opponent goal scored by Hakim Hassan.[69]
Four days later, Selangor were knocked out of the FA Cup, after suffered a 1–2 upset home loss to FELDA United, which Syahmi Safari scored the lone goal for Selangor.[70]
On 20 April, PKNP were defeated 2–1 in the league match at the Shah Alam with goals from Sandro and Syahmi.[71]
Six days later, Selangor came away with a 1–1 draw at Kedah, despite getting an early lead after a goal from Sandro.[72]
May
On the new month, the home game against Melaka United in the league ended in a 1–1 draw, with the goal coming from Syahmi was not enough to secure a win.[73]
On 15 May, a hatrick from new import Ifedayo Olusegun helped Selangor to take a smashing 3–1 victory over Kedah at home, and overtook visitor's position on the third place in the league.[74]
Three days later, a lone goal from Ifedayo saved Selangor one point in a 1–1 draw against PKNP at away.[75]
On 24 May, Selangor lost 1–0 to Terengganu away from home. The own goal in injury time from K. Sarkunan have sealed a victory for The Turtles.[76]
June
On 15 June after the Eid al-Fitr break, a late penalty goal from Sandro gave Selangor a 2–1 home win against rival Kuala Lumpur after Ifedayo scored the other goal.[77]
Four days later, Selangor lost to the top league current leader Johor Darul Ta'zim by 3–2, with Khyril Muhymeen and Sandro scoring the goals in an attempted late comeback.[78]
On 25 June, Pahang was defeated 5–2, with another great performance of Ifedayo as he managed his 2nd hat-trick in the league and another goals scored by Khyril and Endrick to complete another victory for the red giants side.[79]
July
On 7 July, Selangor defeated FELDA United away at the Tun Abdul Razak Stadium with a score of 1–2. Fabulous first half goals from Sandro and Ifedayo were enough to secure a comfortable victory in a top-against-bottom clash.[80]
Three days later, Selangor lost 3–2 away from home to Perak in the league. Taylor Regan struck first and put Selangor in the lead but Careca equalized for the home side. Before end of the first half, Endrick would later score again, but Leandro dos Santos made a level to make the score 2–2. Careca scored another at second half to sealed victory for Seladang.[81]
Three days later, Selangor sealed another victory in the league game after defeated Petaling Jaya City 3–0 at home.
A three goals from Endrick, Khyril and Ifedayo were enough to take all three points.[82]
On 20 July, Selangor ended the league season by defeating PKNS 3–2 away from home. Ifedayo scored a brace, and another goal scored by Sandro. Their victory also confirmed their 3rd placed in the league.[83]
August
Selangor continue their journey to face the Malaysia Cup tournament. The match begins on 3 August in the group stage, where the red giants drew 2–2 with FELDA United at home. Syazwan Zainon and Ifedayo were the goalscorers for the home side.[84]
On 8 August, Selangor defeated Melaka United 1–0 away from home on the second match. A own goal from the home side by Jang Suk-won enough gave the red giants collect the first three points on the campaign.
On the third match, Selangor drew 1–1 with PDRM on 18 August at home. Sandro scored first to gave the home side lead, before Argzim Redžović scored the equalizer for visitor.[85] Three days later, Selangor face back again the same opponent from home to away. The results end with a 2–2 draw. Taylor Regan scored first, while Ifedayo scored the second.[86]
September
After international break, Selangor struggle to find victory after getting a 1–1 draw on 14 September against FELDA United at home. Khyril's 1st goal was not enough for the home side after the equalizing goal of Saiful Ridzuwan.[87]
Four days later, Selangor defeated FELDA United 2–1 on the last match at the group stage. Goals from Ifedayo and Khyril that ensure the red giants reach the top spot in Malaysia Cup Group D.
At knockout stage, Selangor faced the title holders Perak in the quarter-finals. The first leg from away game, Selangor loss 1–0 with a lone goal from Brendan Gan.[88] A week later, Selangor clinch a victory 3–1 on the return leg against the same opponent. A brace from Khyril and a goal from Syazwan Zainon gave Selangor a 3–2 advantage over the two legs, and secure the red giants a spot in the semi-finals.[89][90]
October
On 19 October, Selangor loss with a 1–2 defeat away at the hands of Johor Darul Ta'zim in the first leg of the Malaysia Cup semi-finals, despite an equalizer by Ifedayo.[91]
A week later, Selangor were eliminated from the Malaysia Cup after a 0–3 loss against the same opponent in the second leg (5–1 loss on aggregate) at home. A hatrick from Safawi Rasid gave Selangor end the journey on the tournament, thus ending the season without any trophy.[92]
<Appearances (Apps.) numbers are for appearances in competitive games only including sub appearances. \
Red card numbers denote: Numbers in parentheses represent red cards overturned for wrongful dismissal.