World number one Rafael Nadal will play his first match since January's Australian Open on Friday in Spain's Davis Cup quarter-final.
Nadal, 30, will face Germany's Philipp Kohlschreiber in Valencia on the Spaniard's favoured clay surface.
The 16-time Grand Slam winner has been sidelined since retiring with a hip problem against Marin Cilic in his Melbourne quarter-final.
David Ferrer plays world number four Alexander Zverev, in the other rubber.
Nadal, who has won his last 22 Davis Cup singles matches, will then take on Zverev in the first match of the reverse singles on Sunday.