Novak Djokovic returned following a rain delay to beat Taylor Fritz in the second round of the Internazionali BNL d'Italia after Felix Auger-Aliassime dumped Diego Schwartzman out.

Djokovic, playing his first match since a shock loss to Aslan Karatsev in the semi-finals of the Serbia Open on home soil, dispatched American Fritz 6-3 7-6 (7-5) on Tuesday.

The world number one, who missed the Madrid Open, won the first three games of the match and saved both break points he faced in the opening set.

Fritz had broken for a second time in the second set to level at 5-5 when the rain came at the Foro Italico, but the top seed was able to come back out on court to finish off the job and will face Cameron Norrie or Alejandro Davidovich Fokina in the third round.

Auger-Aliassime secured the third victory over a top-10 opponent in his fledgling career, beating eighth seed Schwartzman 6-1 6-3 to move into round three.

The 20-year-old Canadian only needed 64 minutes to send the Argentine packing, converting five of the six break-point opportunities he earned.

Matteo Berrettini saw off Nikoloz Basilashvili 4-6 6-2 6-4 in the first round less than 48 hours after the Italian was beaten by Alexander Zverev in the Madrid Open final.

Gael Monfils was unable to win his first match since the Australian Open, as Lorenzo Sonego got the better of the fit-again Frenchman, who had been sidelined with a calf injury, 6-4 5-7 6-4.

Reilly Opelka moved into the last 16 with a 6-4 6-4 defeat of Lorenzo Musetti, while Pablo Carreno Busta's withdrawal due to lower back pain handed Kei Nishikori a walkover.

Daniil Medvedev and David Goffin were unable to start their second-round matches due to the weather in Rome.

Pablo Carreno Busta won his first home ATP Tour title at the Andalucia Open on Sunday, while Lorenzo Sonego triumphed in Cagliari.

Hunting a fifth Tour title, top-seed Carreno Busta needed three sets to overcome compatriot Jaume Munar 6-1 2-6 6-4 in Marbella.

It is his 200th tour-level win, though it took him two hours and 21 minutes to claim his maiden Spanish title, and his first win since 2019.

Carreno Busta certainly had to work hard for it, with Munar having battled to 4-4 in the decider.

Yet a seventh break point of the ninth game was taken by Carreno Busta, whose powerful backhand return forced his 23-year-old opponent into an error.

Meanwhile, Sonego became the first Italian since Filippo Volandri in October 2006 to win an ATP Tour title on home soil as he overcame Laslo Djere in the Sardegna Open. 

Serbian Djere was on a nine-match winning streak in Italy, but Sonego – who won the doubles title on Saturday – succeeded 2-6 7-6 (7-5) 6-4.

Sonego is the first player since Feliciano Lopez at the 2019 Queen's Club Championships to win both the doubles and singles titles, and the first Italian to do so since Matteo Berrettini at the 2018 Swiss Open Gstaad.

It represents a second tour-level triumph for world number 34 Sonego, who previously won the 2019 Antalya Open.

Top seed Pablo Carreno Busta and fellow Spaniard Jaume Munar will meet in the Andalucia Open final on Sunday. 

Carreno Busta was pushed all the way by Albert Ramos-Vinolas in a pulsating semi-final, ultimately coming through 6-1 3-6 7-6 (7-5). 

"It was so close. I don't know what happened in the second set," Carreno said. "At the beginning of the match, I was very focussed on my game and being aggressive. 

"After that, Albert, of course, started to push [back] more and [I] started to lose my level a little bit. 

"I just kept fighting all the time, and I want to thank everyone [in the crowd] for their support. This is what we missed last year, the crowd. It's very important to play these kinds of very close matches with a crowd like this."

He will take on Munar after the 23-year-old edged past Carlos Alcaraz 7-6 (7-4) 6-4. 

Munar, who reached a final on the ATP Challenger Tour last week, said: "I feel happy and excited. I've been working a lot during the last [few] months. 

"It's a gift for me to be here in a final, and especially in Marbella which is one of my favourite places. I feel excited."

Elsewhere, Lorenzo Sonego is aiming to become the first Italian to win an ATP Tour clay-court title on home soil for 15 years when he takes on Laslo Djere in the final of the Sardegna Open on Sunday. 

Sonego, 25, overcame American Taylor Fritz 6-4 5-7 6-1 to give himself the opportunity to add to his Antalya Open title from 2019. 

Standing in his way is Serbian Djere, who cruised past Nikoloz Basilashvili 6-2 6-0 in just 52 minutes. 

Djere was in control from the outset and from 3-2 in the first set went on to win nine straight games, helping him to his third ATP Tour final.

Top seed Pablo Carreno Busta led a clean sweep for home players to head up an all-Spanish semi-final slate at the Andalucia Open, where teenage sensation Carlos Alcaraz made history.

Carreno Busta demolished seventh seed Soonwoo Kwon 6-4 6-0, while Casper Ruud was stunned in straight sets by wildcard Alcaraz.

The 17-year-old backed up his victory over the veteran Feliciano Lopez in style, becoming the youngest ATP Tour semi-finalist since Alexander Zverev at Hamburg in 2014 with a 6-2 6-4 win.

Albert Ramos-Vinolas will face Carreno Busta after beating Norbert Gombos 6-7 (4-7) 7-5 6-4, while Alcarez is next on the agenda for compatriot Jaume Munar, who was taken the distance by Ilya Ivashka having overcome second seed Fabio Fognini on Thursday.

Taylor Fritz continued his solid form this season with a straight sets victory over Aljaz Bedene to reach the semi-finals of Sardegna Open.

Fritz is playing as the US number one for the first time in Cagliari this week and he made light work of Bedene, prevailing 6-3 6-4 to book a showdown with third seed Lorenzo Sonego, who beat Yannick Hanfmann 3-6 7-6 (8-6) 6-3 despite being 3-5 down in the second.

Seeded second and ranked 30 in the world, Fitz improved his 2021 record to 11-5 and will look to avenge a defeat in his only other meeting with Sonego on clay, when he lost at Roland Garros last year.

Lorenzo Musetti thrilled as he saved four match points to sink top seed Dan Evans on Thursday but bowed out after another epic, losing to Serbia's Laslo Djere 6-4 4-6 6-2 in two hours and 21 minutes.

Djere, who beat sixth seen John Millman en route to the quarter-finals, will face Nikoloz Basilashvili after the battle between seeds four and five ended 7-5 4-6 6-3 in the Georgian's favour.