Lionel Messi missed his second Barcelona training session in a row, the club confirmed on Tuesday - and in doing so edged closer to a potential fine for breach of contract. New coach Ronald Koeman took training on Tuesday at the Ciutat Esportiva Joan Gamper, Barca's training centre, with the same 19 players that had trained on Monday night, the club said - which means Messi was again absent. Messi missed obligatory Covid-19 testing on Sunday, which every player needed to pass before being allowed to train. A third absence from training could see him accused of breach of contract by Barca, dpa cited Spanish media reports. Should that be the case, according to Spanish employment law, Barcelona could fine the player 25 per cent of his monthly salary. Messi told the club last Tuesday that he wanted to leave, but his bid to do so was dealt a severe blow on Sunday, when the Spanish league sided with the club in his contractual dispute.