Rafael Nadal, sidelined with a hip injury since abandoning his Australian Open quarter-final in January, is set to return to action for Spain tomorrow in their home Davis Cup World Group quarter-final against Germany.
The 30-year-old world number one, who has not played Davis Cup tennis since September 2016, will seek to win his 23rd straight rubber on the clay courts of Valencia's Plaza de Toros, which would mean him setting a record for the longest Davis Cup winning run in combined singles and doubles games.
He last lost a rubber in doubles, with Feliciano Lopez, in Spain's 3-2 victory over Italy in the 2005 World Group playoffs.
Nadal, winner of 22 consecutive singles rubbers since his 2004 debut against the Czech Republic, is joined by Pablo Carreno Busta, Roberto Bautista Agut, David Ferrer and Lopez as Spain seek to reach their first semi-final since 2012.
Germany have selected world number four Aleander Zverev, Philipp Kohlschreiber, Jan-Lennard Struff, Tim Puetz and Maximilian Marterer.
Spain have won 26 consecutive home Davis Cup ties, with their last defeat at home coming against Brazil in 1999.
The winners will meet either Italy or defending champions France, due to face each other on clay at the Valletta Cambiaso ASD in Genoa.
On the other side of the quarter-final draw, in which all matches will run between tomorrow and Sunday (April 8), last year’s beaten finalists Belgium take on the United States on the indoor hard courts of the Curb Event Center in Nashville in Tennessee.
Whoever comes through meets either Kazakhstan or Croatia, whose quarter-final will take place on indoor clay at the Varazdin Arena.
Lucas Pouille, winner of the decisive fifth rubber in the 2017 final against Belgium, headlines for France alongside Adrian Mannarino, Richard Gasquet, Pierre-Hugues Herbert and Nicolas Mahut.
Italy, who last won the Cup in 1976, field Fabio Fognini, Paolo Lorenzi, Andreas Seppi, Simone Bolelli and Matteo Berrettini.
Italy has lost just one of its past seven home ties, while France has won their past five.
The US, 32-times Davis Cup winners, will seek to extend their 4-0 record against Belgium in what is their first meeting in the competition since 1998.
John Isner, currently world-ranked ninth, is joined by Jack Sock, Sam Querrey, Ryan Harrison and Steve Johnson.
An eye injury has deprived Belgium of David Goffin, winner of both his singles matches in last year’s 3-2 final defeat by France.
They will bid to reach the semi-finals for the third time in four years with Ruben Bemelmans, Joris De Loore, Sander Gille and Joran Vliegen.
Croatia, led by world number three Marin Cilic, Nadal's last opponent, are seeking to reach the semi-finals for the second time in the past three years in a first-time meeting against Kazakhstan.
Cilic, Boma Ćorić, Viktor Galović, Ivan Dodig and Nikola Mektić will look to extend a five-match winning streak on clay.
Kazakhstan, competing in the World Group for the seventh time in the past eight years, will look to Mikhail Kukushkin, who has a 22-13 event record, for inspiration.
The Davis Cup World Group semi-finals are due be played between November 14 and 16, with the final scheduled for November 23 to 25.