Tomas Berdych revealed on Monday that he will begin to work with Goran Ivanisevic at next week’s Western & Southern Open in Cincinnati.

“I am delighted to announce a new addition to my team,” Berdych wrote on his official Twitter account. “Two months ago, I started working with Luka Kutanjac and I feel that, since then, my game has [improved] and my form has been going in the right direction. In order to further improve, I have decided to add Goran Ivanisevic to the team already in Cincinnati.

“I feel that Goran, with his playing and coaching experience, as well as his energy, is a perfect addition to the team. [I’m] feeling excited about new challenges.”

Ivanisevic parted company with fellow Croatian Marin Cilic, the 2014 US Open champion, on 21 June after a three-year partnership. Former World No. 2 Ivanisevic, one of the biggest servers of the Open Era, captured the 2001 Wimbledon title as a wild card entry.

Berdych, 30, is currently No. 8 in the Emirates ATP Rankings. He has a 12-17 record in tour-level finals.

The all-Argentine tandem of Andres Molteni and Horacio Zeballos kicked off their partnership in style, notching the BB&T Atlanta Open title in their first tournament together.

Molteni and Zeballos defeated the all-Swedish duo of Johan Brunstrom and Andreas Siljestrom 7-6(2), 6-4, dodging rain drops on a stormy Sunday to prevail after one hour and 33 minutes. They earn 250 Emirates ATP Doubles Rankings points and split $33,400 in prize money.

“It was a great week in both singles and doubles,” said Zeballos, who also reached the singles quarter-finals. “It’s one of the best weeks of the year. I’m very happy. I’m hoping it gives me a lot of confidence for the next tournaments.”

“It’s amazing,” added Molteni. “I’m very happy. It’s the first week I have played with Horacio. It’s an incredible week.”

Molteni clinched his first ATP World Tour title in his second final. Zeballos, meanwhile, claimed his fifth career doubles crown and first on hard courts. He has won clay-court titles this season in Sao Paulo and Gstaad with Julio Peralta.

Molteni and Zeballos are the second all-Argentine team to win on the ATP World Tour this year, along with Marrakech winners Guillermo Duran and Maximo Gonzalez.

Brunstrom and Siljestrom earn 150 Emirates ATP Doubles Rankings points, splitting $17,560 in prize money. Brunstrom was bidding for his sixth tour-level title, while Siljestrom was making just his third appearance in a final, seeking his maiden crown.

Clad in Great Britain’s red, white and blue, 2012 gold medalist Andy Murray picked up where he left off in London, prevailing past Serbian Viktor Troicki 6-3, 6-2 to start his Rio Olympics.

Murray, No. 2 in the Emirates ATP Rankings, improved to 8-0 against Troicki, World No. 35. The top Brit pressured Troicki throughout the first-round match, seeing 10 break points and converting four of them. Murray also extended rallies with the No. 2 Serbian, who finished with 40 unforced errors to 11 winners.

Murray, the second seed in Rio, will next face Argentine Juan Monaco, who beat Mirza Basic of Bosnia & Herzegovina 6-2, 6-2. Murray leads their FedEx ATP Head2Head series 3-2, including the last time they played, on the hard courts at the 2014 Shenzhen Open.

Rafael Nadal, 2008 gold medalist in Beijing, dropped only three games in his return to the Olympics, winning 6-2, 6-1 against Argentine Federico Delbonis. The third seed won 63 per cent of his service points and was almost equally as effective as a returner, winning 59 per cent of Delbonis’ service points.

“I’m very happy,” Nadal said on NBC. “It’s important for me to play well again and it was an unbelievable start. I played well mentally with strong concentration all match.”

Nadal will face Italy’s Andreas Seppi in the second round. The Spaniard leads their FedEx ATP Head2Head series 6-1. “Seppi is a very tough player,” Nadal said. “He can play very well on all surfaces with great control from the baseline. I have to change the rhythm of the match to have success.”

Nadal’s compatriot seventh seed David Ferrer opened his third Olympics with a 6-2, 6-1 win against Uzbekistan’s Denis Istomin. The 34-year-old Ferrer, No. 12 in the Emirates ATP Rankings, hit five aces and was particularly effective attacking Istomin, winning 12/14 net points.

Ferrer will face Russian Evgeny Donskoy in the second round. Ferrer won their only previous FedEx ATP Head2Head match-up, a 6-1, 6-2, 6-0 sweep at Roland Garros earlier this season.

Home favourite Thomaz Bellucci advanced to the second round when German Dustin Brown retired because of a left ankle injury up 6-4, 4-5. The Brazilian will face 11^th seed Pablo Cuevas of Uruguay or Nikoloz Basilashvili of Georgia. Bellucci’s countryman Rogerio Dutra Silva prevailed against Thomas Fabbiano of Italy 7-6(4), 6-1. Dutra Silva will face Frenchman Gael Monfils.

Tenth seed Roberto Bautista Agut, playing in his first Olympics, advanced 6-7(4), 6-2 when Russian Andrey Kuznetsov retired. Luxembourg’s Gilles Muller saved two match points in the third set tie-break to beat Poland’s Jerzy Janowicz 5-7, 6-1, 7-6(10).