Stefanos Tsitsipas lost his head in Hamburg.
Watch Tsitsipas' Wilson Blade racquet rupture as he hits a backhand during his 3-6, 6-1, 6-3 loss to Filip Krajinovic in Hamburg today.
The top-seeded Greek is left holding the handle after the face of the racquet goes flying following the strike giving new meaning tot he term head-light racquet.
Krajinovic scored his third career Top 10 win and first since he defeated fourth-ranked Dominic Thiem at the Western & Southern Open last summer.