On 29 July, 2020, the London Lions re-signed Edmir Lucas for the 2020–21 BBL season.[6]
On 3 August, 2020, the London Lions signed Kervin Bristol after a season in Ukraine. Kervin was a member of the 2018–19 Lions squad.[7] On 21 November, 2020, Kervin Bristol had been de-registered from the team, but remains on staff.
On 5 August, 2020, the London Lions re-signed British international Jules Dang-Akodo for the 2020–21 BBL season.[8]
On 6 August, 2020, the Lions have signed young Brit, Kingsley Okoroh for the 2020–21 squad.[9]
On 10 August, 2020, the London Lions signed Chris Tawiah after a season in Romania. Chris was a member of the 2010–11 Lions squad.[10]
On 12 August, 2020, the London Lions signed American Kevin Ware for the 2020–21 BBL season.[11]
On 20 August, 2020, the London Lions signed six-year NBA veteran, Byron Mullens to the 2020–21 squad.[14]
On 13 September, 2020, the London Lions signed former Lion Matthew Bryan-Amaning to the 2020–21 squad. Bryan-Amaning was a member of the Lions in 2013.[15] On 13 October, 2020, Bryan-Amaning parted ways with the team.[16]
*Note: FIBA has withdrawn the London Lions from the FIBA Europe Cup Regular Season due to COVID-19 disruptions. All games of the London Lions will be forfeited.[21]