Two goals from Gary Hooper helped Celtic to a 4-0 Premier League win over Dundee United and undoubtedly stiffened manager Neil Lennon\'s resolve to get the best price possible for the striker if he is to leave Parkhead this month. Before kick-off Lennon confirmed that his striker had turned down a contract offer while also revealing that the club had turned down another offer from Norwich after rejecting a bid, reported to be about £5million, for the 24-year-old last week. Hooper, who has 18 months left on his current deal, showed why he is attracting increasing interest when he converted a Georgios Samaras pass in the 19th minute before midfielder Victor Wanyama headed in number two before the break. Former Scunthorpe striker Hooper struck again 10 minutes from time to take his tally to 22 before he set up substitute Scott Brown for the fourth. From FIFA