Tim Tebow has work to do if he's going to win over New York sports fans. The new backup quarterback for the Jets was booed at Yankee Stadium on Sunday night when he was shown on the giant video board -- even though he was wearing a Yankees cap. [+] EnlargeWade/Tebow William Perlman/US PresswireJets quarterback Tim Tebow (right) and Heat guard Dwyane Wade felt the full warmth of Yankees fans Sunday. Sitting in the third row next to the Los Angeles Angels dugout, Tebow cracked a smile and acknowledged...