Question: Which retired Canadian professional ice hockey player did Mike Barnett make contract for 
Sentence (from "Mike Barnett (ice hockey)"): Barnett negotiated the playing and marketing contracts for Wayne Gretzky, Brett Hull, Jaromir Jagr, Sergei Fedorov, Paul Coffey, Joe Thornton, Mats Sundin, Lanny McDonald, Grant Fuhr, Marty McSorley, Alexander Mogilny, Owen Nolan, Daniel Sedin and Henrik Sedin and numerous others.
Relevant evidence: Yes