By William Mackay: Well, we now know that IBF light heavyweight champion Chad Dawson didn’t put in one of his better performances against Antonio Tarver last Saturday night, beating him by a 12-round unanimous decision that left a lot of people wondering about Dawson. With the fight well in hand after six rounds, Dawson had a number of lapses of concentration in the final six rounds, taking shots and not entirely dealing well with the little bit of pressure that Tarver was putting on Dawson.