Jannik Sinner bloodied during fierce five-set victory in Wimbledon opener

Defending champion Sinner comes back to beat Kecmanovic in 5 sets in 1st round of Wimbledon

Defending champion Jannik Sinner had to come back from a set down twice and regain his composure following a worrisome tumble to the grass in a five-set victory over 50th-ranked…