World number two Rafael Nadal has been seeded third for Wimbledon this year behind top-ranked Novak Djokovic and world number three Roger Federer.
It means the Spaniard, rather than eight-time winner Federer, is likely to be in the same half of the draw as Djokovic and thus in line to face the defending champion in the semi-finals.
The women’s seedings reflect the world rankings, so Serena Williams is 11th and Britain’s Johanna Konta 19th.
The 2019 championships begin on Monday.
Wimbledon seeding is different from the other Grand Slams in that it does not always follow world rankings and is affected by grass-court performances.
Nadal said it “doesn’t seem right” when asked about his likely seeding behind Federer.
Last year’s finalist and world number eight Kevin Anderson is seeded fourth, and John Isner moves up to ninth after his run to the 2018 semi-finals.
Dominic Thiem, Alexander Zverev and Stefanos Tsitsipas have all gone down one position in the seedings, while Britain’s Kyle Edmund will be the 30th seed.
French Open champion Ashleigh Barty tops the ladies’ seedings for the first time at a grand slam, with Naomi Osaka second. Defending champion Angelique Kerber is fifth.
The women’s seedings follow the WTA ranking list but changes can be made for a “balanced draw”, which is the reason Serena Williams, ranked 183rd before last year’s tournament, was seeded 25th in 2018.