Further arrests have been made in connection with disorder which broke out ahead the game between Sunderland and West Ham.
Violence, which police think was pre-arranged, erupted in Sunderland city centre on 12 January.
Northumbria Police said it had made six further arrests - including a 15-year-old boy - bringing the total number to 14.
Police said trouble broke out before the match outside Revolution Bar, in Low Row.
A spokeswoman said 13 others were being sought in connection with the disorder.