Maybe it was to find out how he'd respond - I'd much rather bring him on at the end of a game we've won and find out how he responds rather than start him against Wigan and end up subbing him after 10 minutes.
What is a thigh injury ? and he should have just sat about for 3 or 4 weeks and did nowt, i hope Seb is sitting watching the telly untill he is fit.