By Martyn Herman LONDON (Reuters) -World number one Jannik Sinner shrugged off any fears about his injured elbow with a clinical defeat of powerful young American 10th seed Ben Shelton to reach the Wimbledon semi-final for the second time on Wednesday.

Luck favored Jannik Sinner, who, despite being two sets down in the Wimbledon fourth round, advanced due to the unfortunate withdrawal of Grigor Dimitrov, who suffered a chest strain. The

Despite facing some injury concerns ahead of his Wimbledon semifinal match against Jannik Sinner, seven-time champion Novak Djokovic must be willing to leave it on all the court if he hopes to prevail,

The world's No. 1 experienced discomfort in his elbow after taking an "unfortunate fall" in the fourth round of Wimbledon against Grigor Dimitrov. The match proved to be a battle of attrition as an injury forced Dmitrov to retire mid-match, meaning Sinner would advance despite playing through pain.

Concerns remain over Novak Djokovic's fitness after he cancels a scheduled practice session before his Wimbledon semi-final against Jannik Sinner.

LONDON - World number one Jannik Sinner shrugged off any fears about his injured elbow with a clinical defeat of powerful young American 10th seed Ben Shelton to reach the Wimbledon semi-final for ...