sentences:  For example, during a 2007 game against the Yankees, with the Yankees threatening to score, Red Sox manager Terry Francona was suddenly called away from the game and questioned by a league executive as to whether he was wearing the required uniform jersey beneath his blue pullover.He wasn’t pleased.Although some teams — particularly college teams — continue to wear traditional baseball stirrup socks, another option has been to replace the stirrup/undersock with a "2 in 1" combination sock that mimics the real thing, or simply to wear a single solid knee-high sock with knickers.