The 21 year-old has dropped from the Premier League to League One in search of regular football.
Posh have had mixed experiences with players signed straight from the top flight.
Here are 10 of the best and 10 of the worst, mostly nominated by PT readers...
17. BEST: CHARLIE LEE
A free transfer signing from Spurs in May, 2007 who turned into one of the most popular Posh players of recent times. A key player in back-to-back promotions in 2007-08 and 2008-09, as well as a third in 2010-11, before leaving London Road after 177 appearances and 16 goals. Photo: s
18. WORST: KEN MCEVOY
Winger, who was a Gareth Bale lookalike, signed on a season-long loan from Spurs in July, 2014, but he managed just 3 Posh starts before he was sent back to North London. Photo: s
19. BEST: GEORGE THORNE
Midfielder who joined Posh on loan from West Brom in November, 2011 and delivered a brilliant 7-game spell for Posh at Championship level before he was recalled by his parent club. Photo: dl
20. WORST: SHAQUILE COULTHIRST
A striker who moved to Posh from Spurs in January 2016 for an undisclosed fee, but never really got going at London Road. He scored 7 goals in 43 appearances and spent last season playing for relegated National League North side Peterborough Sports. Photo: Peterborough United Football Clu