Roger Federer only just left Zambia after a visiting programmes supported by his self-named foundation this week. But he’s already looking forward to returning to the African nation.

Federer visited educational programmes and talked with students and parents who benefit from foundation-funded projects. He also made time for some fun, kicking around the football and dancing with boys and girls.

View More Photos From Federer’s Visit To Zambia

“The welcome here in Zambia has been wonderful. The people have been super, super, friendly. They could have not been nicer to me and to the team of the Roger Federer Foundation,” Federer said. “So when you feel this way, of course, you want to come back as soon as possible.”

Rafael Nadal endured his most serious test of the young clay-court season on Friday at the Barcelona Open Banc Sabadell. But the Spaniard fought through – coming back from a break down in the second set – to reach his 11^th Barcelona semi-final (11-1 in QF).

The No. 1 player in the ATP Rankings extended his clay-court sets win streak to 42 and his clay-court match-wins streak to 17 against Martin Klizan of Slovakia. Nadal saved three set points in the second set and ousted the left-hander 6-0, 7-5 on Pista Rafa Nadal.

The 31-year-old Spaniard, with a chance to play for his 11^th Barcelona title on the line, will next face fourth seed David Goffin, who beat Spaniard Roberto Bautista Agut 6-7(3), 6-2, 6-2. Goffin has come back from a set down in all three of his matches this week in Barcelona. Nadal leads their FedEx ATP Head2Head series 2-1, but Goffin won their most-recent contest at the 2017 Nitto ATP Finals.

Read More: Goffin Stuns Rafa In London

Nadal dominated the opener against Klizan, breaking the left-hander three times and dropping only four points on serve (12/16). The Spaniard was racing all over the court and attacking the Slovakian, who had beaten Novak Djokovic and Feliciano Lopez of Spain to make the quarter-finals.

But in the second set, Klizan, a three-time clay-court titlist, found his form, breaking to start and mixing in drop shots against Nadal. At 5-4, Klizan had the set on his racquet.

That alone marked an accomplishment: Not since the 2017 Rome quarter-finals last May, when Dominic Thiem beat Nadal 6-4, 6-3, had someone won so many games against Nadal during a set on clay.

But Klizan couldn’t force a decider. Three set points came and went, and Nadal delivered a series of fist pumps and shouts after Klizan lifted a forehand wide on break point. The Spaniard raced through the final two games, prolonging his streaks and his stay in Barcelona.

Marco Cecchinato pumped his right fist in celebration after hitting a smash winner to wrap up a 5-7, 6-4, 6-2 victory over seventh-seeded German Jan-Lennard Struff on Friday at the Gazprom Hungarian Open. The Italian lucky loser is through to his first ATP World Tour semi-final, where he’ll face eighth seed Andreas Seppi of Italy or Georgia’s Nikoloz Basilashvili.