Pro Bowl TE Antonio Gates has agreed to a five-year contract extension with the San Diego Chargers. The deal, which runs through the 2015 season, is worth $7.235 million per season, with $20.4 million in guarantees, a source told ESPN senior NFL analyst Chris Mortensen. After three straight injury-plagued seasons in which Gates failed to eclipse 1,000 receiving yards, he set a career high in 2009 with 1,157 yards. He has also scored eight-plus touchdowns in six straight seasons. Source: ESPN