"Peripheral figure" refers to someone who is not at the center or main focus of a situation or event. They may play a smaller or less significant role, often being on the outskirts or margins of the main action. Full definition
The rest have been peripheral figures at their adopted clubs which reflects either on their own abilities or the wisdom of the loan system. (westhamway.net)
Juventus right back Mauricio Isla is a largely peripheral figure for the Serie A champions, finding his route to the team blocked by Swiss international Stephane Lichtsteiner, but for Chile he is crucial, with his stamina and runs forward from right wing back being vital to Jorge Sampaoli's side. (caughtoffside.com)
Although he was a regular starter in his first two seasons at Bayern, scoring 27 goals in that period, he has been a more peripheral figure since. (liverpoolfc.com)