Nadal and Struff meet for the first time on Pista Rafa Nadal for a place in the Barcelona Open semi-finals.
The 11-time Barcelona Open champion is into his 13th quarter-final at the event while Struff will be competing in his first.
By beating David Ferrer on Thursday, Nadal won his 60th match in Barcelona, making it the fourth tournament where he’s won 60 or more matches.
Victory for Struff against Nadal would be the biggest win of his career, a month after he beat world No 3 Alexander Zverev at Indian Wells.
What time will Rafael Nadal play Jan-Lennard Struff at the Barcelona Open today?
Nadal plays Struff in the third match of the day on Pista Rafa Nadal.
The match follows the quarter-final clash between Roberto Carballes Baena and Kei Nishikori.
Nadal and Struff are expected on court at around 15.00 (BST).
Rafael Nadal vs Jan-Lennard Struff live stream – how to watch
Coverage of Rafael Nadal’s match against Jan-Lennard Struff is being broadcast on Amazon Prime Video.
This year, Prime Video will broadcast on-site, live studio coverage across tournaments, including at the BNP Paribas Open from Indian Wells, the Fever Tree Championships from The Queens Club, the US Open, and the Nitto ATP Finals from The O2.
On-site field reporters will bring customers the latest action, analysis and commentary right from the court side at many tournaments.
In addition to 37 ATP Tour events and the US Open available exclusively on Prime Video with a Prime membership, Prime members in the UK who subscribe to Eurosport Player through Prime Video Channels for an additional £6.99 per month (following a 7-day free trial) will also benefit from full coverage of the French Open, and daily highlights and live coverage from the men’s and women’s finals of Wimbledon in 2019.