Sterling was instrumental in helping England reach the Euro 2020 final, which they ultimately lost out to Italy in a penalty shootout.
Sancho, who missed a penalty in the shootout, said as a society we need to do better and hold these "people accountable".
English football fans turned violent after the national team lost 3-2 on penalties against Italy in the title clash at the Wembley Stadium.
Italy had eliminated England by penalty shootouts in the 2012 Euro quarterfinal.
After the regulation time finished 1-1, three English players missed their penalties to hand the trophy to Roberto Mancini’s side.
The sporting activities, from Olympics to Euro and cricket are all being impacted by the coronavirus even in 2021.