Real Madrid midfielder Luka Modric has put Chelsea, Manchester United and Manchester City on alert for a summer move, after the Croatian was voted La Liga's worst signing of 2012, reports the Sunday Mirror.

The 27-year-old has struggled to adapt to life in the Spanish capital since arriving at the Santiago Bernabeu in a £33million deal from Tottenham Hotspur back in August.

Only last week, the former Spurs star admitted that his switch had been challenging, and now sources back in Modric's homeland suggest he could return to the Premier League in 2013/14.

Chelsea tried to sign the creative schemer back in 2011, and made a late bid to snatch him from under the noses of Real Madrid last summer, so there is a strong chance the Blues will bid to bring him to Stamford Bridge again.

Meanwhile, Red Devils boss Sir Alex ­Ferguson has been a ­long-standing fan of Modric, and knows he must ­eventually strengthen his ­Old Trafford midfield, as the likes of Paul Scholes and Ryan Giggs near the end of their careers.

Roberto Mancini has ­also previously declared his admiration for the playmaker, and so Manchester City could make it a trio of top Premier League clubs battling for Modric's signature.

The Croatian international does not want to give up on his Real Madrid ­career yet, but if things don't improve he might be forced to reconsider his options at the end of the campaign.

Modric has only started eight league games for Real Madrid under Jose Mourinho, scoring just one goal, and will be hoping for a quick turnaround in form, starting with tonight's La Liga clash against Real Sociedad.­

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