Daddy troubleMaria Sharapova’s father today escaped punishment for a throat-slitting gesture, but the “gutter behaviour” cemented his place in the club of infamous tennis parents. Yuri Sharapov has been a fixture courtside at the season-opening Grand Slam, often unshaven, wearing dark glasses and with the hood pulled up on his camouflage army-print sweatshirt. Even his glamorous daughter said he looked like “an assassin”.