World number two Rafael Nadal has been seeded third for Wimbledon this year behind top-ranked Novak Djokovic and world number three Roger Federer.
The Spaniard now has a 50-50 chance of being in the same half as Djokovic and thus could meet him in the semi-finals.
Had he been second seed, rather than Federer, he could not have met the defending champion before the final.
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.
The women’s seedings reflect the world rankings, so Serena Williams is 11th and Britain’s Johanna Konta 19th.
French Open champion Ashleigh Barty tops the ladies’ seedings for the first time at a grand slam, with Naomi Osaka second and defending champion Angelique Kerber fifth.