LaDainian Tomlinson and Philip Rivers exchanged words as they walked to the sidelines on sunday. ?We (were) just talking about a play,? Tomlinson said of his sideline tiff with Rivers. ?That's the penalty sometimes in a situation like that, you know, it appears to be like we're arguing. It wasn't really arguing. It's just competitive talk sometimes. It's the things you get into sometimes with two guys trying to get on the same page.?