Canada's Denis Shapovalov is out of the Japan Open.
The Richmond Hill, Ont., lost by way of walkover to top-seeded Spaniard Carlos Alcaraz after having to retire from their quarterfinal match due to injury on Sunday in Tokyo.
Alcaraz was leading 7-6 (3), 2-1 when Shapovalov retired.
Shapovalov converted on three of his four break-point chances by that point, while saving four of Alcaraz's seven opportunities.
Shapovalov was coming off a three-set win over Chile's Alejandro Tabilo.
Alcaraz will next face Spanish qualifier Jaume Munar in the semifinals.
