Complex sentence: Tebow was asked to co-host ABC News' Good Morning America on January 31,2014, shortly before Super Bowl XLVIII, and was joined on the morning show by Eli Manning.
Split into simpler sentences: Tebow was asked to co-host ABC News' Good Morning America on January 31,2014 just prior to Super Bowl XLVIII. He was joined on the morning show by Eli Manning.