The Mirror reports that Celtic boss Neil Lennon will make a new bid for Tomlin, after having three bids rejected for him in the summer.
Peterborough have reportedly put a £4.5million price-tag on the highly-rated playmaker.
Celtic scout Craig Strachan watched Tomlin in action for Peterborough at the weekend.
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Chelsea legend Didier Drogba has revealed his top 11 Chelsea career moments during his recent interview on Chelsea TV.
The start of the 2017-18 Premier League season is just around the corner and is shaping up to be one of the most competitive yet.