With three centre-backs set to be miss out on Arsenal’s FA Cup final clash against Chelsea on Saturday, Arsene Wenger has hinted that his recently revamped formation could face yet another shuffle.

• Wenger could start four at the back against Chelsea
• Per Mertesacker set to make second appearance of the season in FA Cup final
• Manager will test new formation in training ahead of Saturday

Although Arsenal’s new 3-4-3 formation has produced (varied) success since its debut against Middlesbrough, it’s still a work in progress, and now it appears that Wenger could be about to switch everything around again to make up for the lack of centre-backs available for the FA Cup final.

Laurent Koscielny picked up a red card in the 14th minute against Everton during the Gunners’ 3-1 win on the final day of the season and therefore misses the game through suspension.

Meanwhile, Shkodran Mustafi has been ill so hasn’t trained, and Gabriel is out for six to eight weeks after being stretched off against the Toffees.

Therefore, Wenger looks likely to use 4-3-3 against Chelsea.

“It just shows you how unpredictable football can be because we played at home, your mind is on attacking, and on the day we lost two centre-backs,” the Frenchman told the press.

“It’s absolutely unbelievable and unpredictable, and we have been hit hard in a position where we will need to be strong on Saturday. We’ll have to find solutions and hopefully I will find the good solutions.

“I have to decide until Saturday [whether to keep a back three or not] – we’ll test that in training until then.”