A refreshed Dominic Thiem made light work of his second-round clash at the Madrid Open as he returned to the ATP Tour in style.
Jannik Sinner has won his previous two matches against Roberto Bautista Agut, and now he will target a third success, on clay in Barcelona.
Jannik Sinner is widely expected to be one of the leading players on the ATP Tour for years to come, and a clash with Novak Djokovic awaits.
World number eight Andrey Rublev was toppled by Hubert Hurkacz, missing out on a place in Sunday's Miami Open final.
Jannik Sinner has become the fourth teenager to reach a Miami Open men's final, after Andre Agassi, Novak Djokovic and Rafael Nadal.
Daniil Medvedev's woes against Roberto Bautista Agut continued on Wednesday as Jannik Sinner moved through to the semis.
Daniil Medvedev could barely walk but still progressed from the third round on Sunday.
Last week's Mexican Open champion Alexander Zverev went down in the second round in Miami to Finland's Emil Ruusuvuori.
Stefanos Tsitsipas has been champion twice in Marseille, but he will not make it three in a row this year after a quarter-final defeat.
Spain's Roberto Bautista Agut was the highest seed in action in Qatar and suffered a first-round scare against Reilly Opelka.