Roger Federer booked his 12th career final at the ATP Halle grass tournament on Saturday, beating qualifier Denis Kudla 7-6 (7/1), 7-5. The Swiss needs to win the title on Sunday - it would be his tenth at the event - to remain world number one heading into Wimbledon.

He will face either Spanish fourth seed Roberto Bautista Agut or Croatian Borna Coric. Federer's win was his 20th in a row on grass, dating to June, 2017. Federer needed just under 90 minutes to get the job done and hold off the 109th-ranked Kulda, who had not lost a set going into the semi-final.