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Arsenal manager Arsene Wenger has hinted that Jack Wilshere is losing his race against time to play for England in the European Championships in June.

Wilshere, 20, has spent the entire season on the sidelines after undergoing surgery on his injured ankle last September and Wenger has revealed the midfielder is "down".

Wilshere has yet to train with the first team and is still confined to training by himself in the gym.

Arsenal have five games remaining this season but Wenger remains cautious over whether Wilshere will play any part.

Wenger said: "I will not take any risks with him. He is making slow progress so we still have to monitor the situation a little bit at the moment.

"We are now in mid-April, the Euros start in the middle of June.

"Jack has not played for the whole season and anyone who knows what is required at the top level, in terms of intensity, it's getting short now."

When asked if Wilshere's spirits were high, Wenger added: "How can you be at 20 years of age when your only dream is to play football? He's down.

"Jack is mentally strong. But what is holding him back is that he can't play football, so he can't be happy."

Meanwhile, Wenger wants referees to be allowed to stop the game to consult video technology to make instant decisions in the Premier League.

Wenger, whose call comes after a week of high-profile mistakes by match officials, said: "Last weekend was a very, very bad weekend. The football authorities on a global scale have to sit together and see how we can improve.

"Video will help the referees - not question their authority. It will give them more credit, more authority and less mistakes. (We need) instant video replays on the demand of the referee."

Arsenal play Wigan on Monday and full-back Kieran Gibbs and midfielder Gervinho could be available after recovering from groin and ankle injuries respectively. Laurent Koscielny is suspended.