Tigers players Dan Cole, Toby Flood, Geoff Parling, Manusamoa Tuilagi, Tom Youngs and Thomas Waldrom remain with the England squad as they prepare for the QBE Autumn Internationals.
Allen and Youngs are among nine players this evening (Tuesday) released back to their Aviva Premiership clubs under the RFU’s Elite Player Squad agreement with Premiership Rugby.
Mike Brown (Harlequins), Phil Dowson (Northampton Saints), Ben Morgan (Gloucester Rugby), Dylan Hartley (Northampton Saints), James Haskell (London Wasps), Courtney Lawes (Northampton Saints) and Jordan Turner-Hall (Harlequins) have also been released.
Hartley and Lawes have beeen released for treatment on knee injuries as part of a co-ordinated programme between England and Northampton Saints. They will be reassessed by the England medical team at Pennyhill Park on Sunday.
England head coach Stuart Lancaster: “It has been a busy few days of training as well as injury assessment and in line with the EPS agreement coordinating the release of players, some will return for further treatment from their club and others to get some game time to put a marker down for selection for when we meet again on Sunday after the weekend's games.
“We will not finalise selection for the Fiji game until after training next Tuesday and so for those going back and playing this is a real opportunity to stake a claim with a really big performance.”
Matt Mullan of Worcester Warriors and George Robson of Harlequins will train with the squad tomorrow before returning to their clubs.
Lancaster, meanwhile, has named Chris Robshaw as his captain for the QBE Internationals against Fiji, Australia, South Africa and New Zealand at Twickenham Stadium.
The Harlequins skipper has led his country in all but one of eight Tests under Lancaster, who said: “We are delighted that he will captain the team for what will be an immense challenge in the QBE Internationals.”