Bruno is on the brink for Albion.
The Spanish right-back, left, is one more booking away from a ban.
Bruno has accumulated nine cautions this season.
An automatic two-match suspension for reaching ten looks inevitable for the former Valencia man before the cut-off next month.
The Seagulls have nine games left to reach the play-offs and have compatriot Inigo Calderon as a ready-made deputy in Bruno’s role.
Calderon was ruled out of the squad for Tuesday’s 1-0 defeat at Sheffield Wednesday by a bug which also accounted for Leo Ulloa and Dale Stephens and which has affected other members of staff.
Bruno clashed with keeper Tomasz Kuszczak after Leon Best’s late winner for Sheffield.
Head coach Oscar Garcia does not expect any bad feeling between the pair to spill over into Saturday’s home game against Middlesbrough.