Upon graduating from West Virginia University, Lawrence was a highly rated prospect prior to the 2017 NWSL College Draft.[10] In January 2017, Lawrence signed with Paris Saint-Germain in Division 1 Féminine, with a two-year contract.[11][12] With PSG she reached the final of the UEFA Champions League in her first season, where they only lost on penalties against league rivals Olympique Lyon. She was one of the successful shooters on her team.[13]
As third place in the league, PSG missed the 2017/18 Champions League. In December 2018, Lawrence signed a multi-year contract extension with PSG.[14] In 2018/19, PSG was able to compete again as league runners-up, but were eliminated in the quarter-finals against Chelsea. Lawrence appeared in four of the six games.
In 2020/21 they beat Lyon in the quarter-finals of the Champions League, and were also able to replace Lyon as French champions after 14 championship titles in a row.[15] Lawrence was used in 20 of 22 league games and in 6 Champions League games, which ended with elimination in the semi-finals against eventual winners FC Barcelona.
Chelsea F.C.
On July 1, 2023, Lawrence signed a three-year deal with Chelsea in the Women's Super League until the summer of 2026.[16] She joined the London-based club after she had represented the Parisians for the past six years.[17] She scored her first goal for Chelsea against Aston Villa on November 4, 2023.[18]
She was called up to the squad for the 2015 World Cup hosted by her own country, where she was in the starting line-up for the opening game and also played in the subsequent games. In the last group game against the Netherlands she scored 1-0 and thus her first international and World Cup goal. She and her team were eliminated in the quarter-finals against England.
After the 2015 World Cup, Lawrence took part in the 2015 Pan American Games with the U-23 team, which also took place in her home country and where the Canadians took fourth place. In December 2015, she took part in the four-nation tournament in Brazil with the senior national team, where Canada took second place. She was also part of the squad for the 2016 Summer Olympics qualifying tournament, where Canada qualified. She was used in all games and was only not in the starting line-up in the 10–0 win against Guatemala, when some regular players were rested. In the first game against Guyana, she scored three of Canada's five goals. She was named to the tournament's all-star team as the best left midfielder.[19]
In 2016, she was named to the Olympic team squad for the Summer Games in Rio de Janeiro in August, where she played in all six games (one substitution) and won the bronze medal with the national team.[20]
On May 25, 2019, she was nominated for the 2019 World Cup.[21] She was used in the Canadians' four games and didn't miss a minute, but her team was eliminated in the round of 16 against Sweden, who later came third.
In June 2021, Lawrence was nominated for the Olympic Games, which were postponed by a year due to the COVID-19 pandemic.[22] At the games she was used in the six games and was only substituted nine minutes before the end of the game in the third group game against Great Britain. On August 2, 2021, she played her 100th international match for Canada in the semi-final against the USA.[23] At 116:56 of the Olympic final, she cleared away a Swedish cross on her own goal line to prevent a header goal. Canada went on to win the match in the penalty shoot-out, winning the gold medal with her team.[24]
At the 2022 CONCACAF W Championship, she was used in the three group games, the semi-finals, and the final. By reaching the semi-finals, the Canadians qualified for the 2023 World Cup in Australia and New Zealand. But in the final they lost again to the USA.
On July 9, 2023, Lawrence was nominated for the 2023 World Cup.[25] She played in each of her team's three games, and was eliminated with her team after the preliminary round by Australia.[26]