Could there be wholesale changes at Liverpool at the end of the current campaign?
Goalkeeper Mignolet only recently signed a new long-term contract at Anfield, but his high-profile mistakes continue and the Reds will surely be looking for a more reliable stopper as they bid to challenge for the Premier League title next season.
Welsh international Allen has played 115 times for Liverpool to date, including 20 times this season, but despite scoring two goals and providing two assists in the current campaign his lack of starts could be the deciding factor.
Ladbrokes have odds of 6/4 for Mignolet to find a new club this summer with Allen rated at 2/1 to leave at the next available opportunity.
Unsurprisingly considering his lack of impact since his summer switch from Aston Villa, striker Christian Benteke is the joint third favourite to leave Liverpool with odds of 3/1 (the same as Adam Lallana).
Liverpool manager Jurgen Klopp gave the players he inherited the chance to prove themselves rather than going crazy in the January transfer window. However the German will now be aware that changes need to be made to turn his promising side into genuine title contenders.