Leicester Tigers roar back in second half to break 14-man Worcester

• Worcester 20-29 LeicesterWorcester were left to rue Donncha O’Callaghan’s red card as Leicester left it late to secure a four-try bonus point win at Sixways. Having raced into a 17-0 lead, Worcester were slowly reeled in by the Tigers as ill-discipline cost them dear. Four yellow cards in all were handed out to Worcester by referee Wayne Barnes and two of them went to O’Callaghan. The former Ireland lock was given his marching orders shortly after half-time.Tries from Wynand Olivier and Matt Cox had put the home side in front early on but Graham Kitchener crossed before the break gave Leices…