LONDON — Roger Federer is back at No. 1 in the ATP rankings, once again swapping spots with Rafael Nadal.
Federer’s title at the grass-court tournament in Stuttgart, Germany, last week pushed him up from No. 2 on Monday.
Nadal dropped down from No. 1 after sitting out last week following his 11th French Open championship earlier in the month.
This is the fifth time the top ranking has changed hands between Federer and Nadal. That’s the most switches at No. 1 in a single season since there were also five in 2003.
The record for most changes at No. 1 is 10, set in 1983, when John McEnroe, Jimmy Connors and Ivan Lendl all spent time there.
This is Federer’s record-extending 310th week at No. 1.
STRASBOURG, France (AP) Top-seeded Ashleigh Barty withdrew from the Internationaux de Strasbourg clay-court tournament on Tuesday because of a right arm injury.
Barty was replaced in the main draw by lucky loser Diana Marcinkevica.
The eighth-ranked Australian said she would not take any risk ahead of the French Open, which starts Sunday in Paris.
“I gave it my best chance, but unfortunately I wouldn’t be playing my best tennis,” Barty said. “I’m busy the next two months and I need to look after my body now.”
GENEVA (AP) Former top-10 player Janko Tipsarevic used his wild-card entry to beat Peter Gojowczyk of Germany 7-5, 7-5 in the Geneva Open first round on Monday.
Now ranked No. 317, the 34-year-old Tipsarevic is back in ATP Tour main draws after missing the 2018 season for hamstring injuries to heal.
Fifth-seeded Radu Albot advanced to the second round on a day when two seeded players lost in the final week of clay-court warmups for the French Open.
Albot beat qualifier Lorenzo Sonego 7-6 (6), 7-6 (3), after 92nd-ranked Hugo Dellien beat eighth-seeded Andreas Seppi 6-1, 3-6, 6-4, and seventh-seeded Matthew Ebden lost to Nicolas Jarry of Chile 6-2, 7-6 (4).
Rain cut short play and gave former No. 3 Grigor Dimitrov a day off after playing through two qualifying rounds.
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