Pep Guardiola had a number of other concerns following the Primera Liga clash but he has now been boosted by a timely triple boost.
Pique played no part in the 1-0 victory over Mallorca but will be available for the first leg of the Champions League quarter-final at the Emirates.
The ankle problem that forced Toure off midway through the second half on Saturday has also been revealed to be not too serious.
Xavi replaced Toure for the final half-hour after recovering from a recent calf injury and came through the match unscathed.
Eric Abidal has also been given the all-clear to return to training after overcoming an adductor muscle problem in his left leg.
The French full-back has been included in the squad after training with his team-mates on Monday morning.
Also in the Barcelona squad is youngster Jonathan Dos Santos but Dmitro Chygrynskiy (ineligible) is missing.
Barcelona 11/8, Arsenal 15/8, Draw 2/1