One Of Barcelona's New Signings Will Be Left Out Of Their Europa League Squad

But Blaugrana boss Xavi Hernandez has been hit with a major dilemma as one of those new signings will not be able to play in European competition.

Barca have dropped down to the Europa League, or the UEFA Cup as it was previously known, for the first time since 2004 after failing to get out of their Champions League group.

And UEFA rules stipulate that only three players bought in the January window are able to be added to their squad for knockout fixtures.

Worryingly for Barca, they don't have all that long to make the decision on who is not making the cut as the deadline for the squad submission is at 11pm on Wednesday.

Barca could really do with the whole quartet in the ranks after being drawn against Napoli in the round of 16;

Youngsters Ez Abde and Ferran Jutgla are also both unavailable in the Europa League as neither were registered on the B list to begin with.

The Gabon international travelled to Barcelona on deadline day to finalise the move, which was sealed after Arsenal agreed to terminate his contract.

Neither club have announced the transfer, though Aubameyang has already been seen taking part in training with his new club.