By Tom Dierberger New England Patriots coach Bill Belichick confirmed Friday that kicking footballs were indeed underinflated during the first half of his team’s 27–17 loss to the Kansas City Chiefs on Sunday. “Yeah, we were aware of it in the first quarter,” Belichick told reporters Friday. “How it happened? Well, the officials handled that, and they were underinflated by two, two-and-a-half pounds. I think you could see that by the kicks.” MassLive.com first reported Wednesday that the balls used for kicking in the first half weighed in at 11 PSI, well short of the league’s 13.5 PSI legal li…