Luka Modric appears to be closer to leaving Tottenham Hotspur after Harry Redknapp admitted the midfielder is in no state of mind to feature against Manchester United on Monday evening.

Chelsea have been chasing Modric all summer and are ready to make a new £30m offer for the Croatian despite the imminent arrival of Juan Mata from Valencia.

Spurs have been clear that they would not entertain offers for Modric, who wants to move across London, but may now struggle to maintain that stance after the manager was forced to leave him out of the squad for his club's Premier League opener.

Modric is not 100% match fit but Redknapp may have been prepared to gamble on him had he been sure of the midfielder's commitment. Instead, he will play no part.

"He's got a little bit of an injury," Redknapp told TalkSport. "There's a possibility he could have played through it. But at the moment his head's not in the right place."

That judgment is telling given that Arsène Wenger was prepared to play Samir Nasri – thought to be close to a switch to Manchester City – against Liverpool at the weekend.

Gareth Bale, meanwhile, has called on the squad not to mourn the loss of Modric if he does leave. Bale, like the Croatian, had an outstanding campaign for Spurs last season, and does not want the 25-year-old to leave. He does think, however, that the squad cannot dwell on his departure should he do so.

"Luka is a fantastic player," Bale said. "I'm not sure what the situation is with him but I think if he is here then he's great for the team, but if he's not then we have to get on without him."

Spurs were without Modric, Jermaine Jenas, Steven Pienaar and Sandro for last week's 5-0 Europa League qualifying win over Hearts, but eased to victory thanks partly to impressive displays from the replacements Jake Livermore and Niko Kranjcar. "Luka and JJ [Jenas] didn't play so it gives confidence to the whole squad that we can play like that," Bale added. "These players that came in are international players and they showed that they are all class. It shows what kind of squad we have got."