Alen Halilovic has apologised after a touchline blow-up with Barcelona B coach Jordi Vinyals.
The young Croatian midfielder blew a fuse when substituted during defeat to Alcorcón. Halilovic's strop left Barca staff unimpressed, where on-field behaviour is as critical as any technical ability.
Later, €10 millon signing Halilovic posted an apology on Instagram:
