- Tag results for Milos Raonic
Milos Raonic defeated Scott Griekspoor of the Netherlands in three sets, securing for Canada a berth in the Davis Cup final.
Former Wimbledon finalist Raonic, ranked 29th due to an injury plagued 2017, won in his first match since going out in the Wimbledon quarter-finals to John Isner a month ago.
Isner now faces former Wimbledon finalist Milos Raonic for a semi-final spot.
The 13th seed won all 20 of his service games on Monday.
Raonic, who was runner-up to Andy Murray in 2016, will face American Mackenzie McDonald in the last 16 on Monday.
So far, the 23-year-old's serve has been clocked at 115 mph (185km/h), seventh fastest in the women's singles with Venus Williams leading the way on 123mph (197km/h).
Federer will now continue his quest for ninth Halle Open title when he meets Kudla for a place in the summit showdown later today.
Roger Federer overtook Rafael Nadal as world number one with a 6-4, 7-6(3) victory over Milos Raonic in Stuttgart Open.
The Swiss great, who is assured of reclaiming the No. 1 ranking from Rafael Nadal on Monday, broke at 1-1 in the opening set and held his nerve in the second, where Raonic double-faulted.
Federer made sure of returning to the world number one ranking when he beat Kyrgios to reach the final of the Stuttgart Cup.
Milos Raonic hammered 19 aces to eliminate defending champion Lucas Pouille 6-4, 7-6 (7/3) and reach the final at the Stuttgart Cup.
Milos Raonic used his big-serving game to dominate a pair of tiebreakers in a 7-6 (7/2), 7-6 (7/1) defeat of Tomas Berdych.
He hasn't played since a straight-set loss to fellow Canadian Denis Shapovalov at Madrid on May 10.
Del Potro raised the roof as he came from behind to beat Milos Raonic 5-7, 7-6 (7/1), 7-6 (7/3) and power into a Miami Open semi-final clash with American John Isner.
Juan Martin del Potro sent his devoted fans home happy by powering into the ATP Miami Open quarter-finals with a 6-4, 6-2 triumph over Serbian Filip Krajinovic.