Karlovic hits record 45 aces for spot in Halle semis

Ivo Karlovic. Photograph: Scott Barbour/Getty Images Croatian Ivo Karlovic hit a record 45 aces en route to beating third seed Tomas Berdych and reach the Halle Open semi-finals on Friday. The......

Karlovic stuns Cilic, Isner aces it in Shanghai

Ivo Karlovic of Croatia returns a shot during his men's singles tennis match against Marin Cilic of Croatia at the Shanghai Masters. Photograph: Aly Song/Reuters US Open champion Marin Cilic made......

Federer downs Karlovic to reach semis

Five-times champion Roger Federer took the sting out of Croatian Ivo Karlovic's venomous serve to win 6-3, 7-5, 7-6 and book his place in a 21st straight Grand Slam semi-final at Wimbledon on......

Karlovic retains Nottingham title

Croatian Ivo Karlovic won the Nottingham Open for the second successive year on Saturday, beating Spain's Fernando Verdasco 7-5, 6-7, 7-6 in a closely-fought final. The match was moved indoors......

Karlovic to defend title against Verdasco

Croatian Ivo Karlovic will defend his Nottingham Open title against Spaniard Fernando Verdasco after both men won their semi-finals in straight sets on Friday. Karlovic beat French Open......