Former world number three Nikolay Davydenko announced his retirement on Thursday at the age of 33.
Top seed Nikolay Davydenko beat defending champion Juan Monaco to take the Poertschach International title 6-2 2-6 6-2 on Saturday, storming back after an injury troubled him in the second set.
Russian Nikolay Davydenko clinched his first title of the season on Sunday when he crushed Frenchman Paul-Henri Mathieu 6-4, 6-2 to win the German Open.
Nikolay Davydenko and David Ferrer, seeded two and three respectively, were knocked out of the World Indoor Tournament on Thursday.
Top seeds Nikolay Davydenko and Juan Monaco battled through two matches each to reach the semi-finals in Poertschach.
Germany's Benjamin Becker caused the biggest upset at Wimbledon so far on Tuesday by knocking out fourth-seeded Russian Nikolay Davydenko 6-4, 6-4, 6-4.
Top seed Nikolay Davydenko and third seed Andy Murray reached the quarter-finals of $1.5 million Qatar Open in contrasting style in Doha.
Andy Roddick beat Nikolay Davydenko in his opening round-robin match at the Shanghai Masters Cup.
The Russian was embroiled in a betting controversy after he retired from his match against Vasallo Arguello in Sopot last week.
Defending champion Davydenko, the top seed, struggled to keep pace with Argentina's Juan Monaco and slumped to a 6-2, 6-7, 6-4 defeat at the Poertschach International.
Nikolay Davydenko won the Sony Ericsson title with a 6-4, 6-2 victory over Spain's second-seeded Rafael Nadal.
Nikolay Davydenko will meet Juan Monaco in the final of the ATP tournament in Poertschach on Saturday.
Andre Agassi was swept aside 6-4, 6-2 by Russian Nikolay Davydenko at the Masters Cup
World number six Russian Davis Cupper Nikolay Davydenko on Wednesday confirmed participation in the US $ 450,000 ATP Chennai Open to be held in January next year. The 14th edition of India's only ATP tennis tournament will be held from January 5 to 11 at the SDAT Stadium in Nungambakkam, Chennai.
Russian Nikolay Davydenko, under investigation by the ATP over an alleged betting scandal, thanked world number one Roger Federer for his support on Thursday.
Marcos beat holder Nikolay Davydenko 6-2, 6-2 in the third round of the Paris Masters Series.
Nikolay Davydenko said an on-court conversation with his wife Irina may have accidentally triggered the betting scandal which has plagued him since last year. The Russian world number four's match against Argentine Martin Vassallo Arguello in Sopot, Poland on August 2 2007 is under investigation by the sport's governing body.
The win gave the Russian his third title of the year.
Serbian teenager Novak Djokovic beat Spanish qualifier Santiago Ventura 6-2, 6-2 to enter the quarterfinals.
Top seed Nikolay Davydenko of Russia and second-seeded Croatian Ivan Ljubicic progressed into the second round of the $1 million Qatar Open in contrasting fashions on Tuesday.
Russian Nikolay Davydenko has won his appeal against a fine for not trying hard enough during a match.
Fourth seed Nikolay Davydenko threw away a two-set lead before going down 4-6, 2-6, 6-2, 6-2, 6-4 to Croatian Ivan Ljubicic in the third round of the French Open on Saturday. Ljubicic, seeded 28th, will next face France's Gael Monfils, who beat Austrian Juergen Melzer.
They were beaten by Lee Hyung-Taik and Paradorn Srichaphan respectively in the quarter-finals of the China Open.
The world number one was pushed by the Russian but survived to book his place in the last four of the Australian Open against German Nicolas Kiefer.
The fifth seed became the first major casualty at the Cincinnati Masters, losing in the opening round.
Russia's Nikolay Davydenko earned the semi-final berth by beating Gaston Gaudio 6-3, 6-4.
World No 2 Rafael Nadal will face fourth-seeded Russian Nikolay Davydenko in the Sony Ericsson Open final after semi-final victories on Friday. The Spaniard, who reeled off the last 12 points of the match, beat Czech Tomas Berdych 7-6, 6-2 in windy conditions, while Davydenko beat Andy Roddick of the United States by the same scoreline.
The unseeded Thai will face Italian David Sanguinetti, who upset number 31 Carlos Moya, in the second round at the US Open.
Russian second seed Nikolay Davydenko easily overcame a potentially tough challenger in Spaniard Feliciano Lopez to reach the second round of the World Indoor Tournament with a 6-4, 6-2 win on Wednesday.
Nikolay Davydenko sealed the last semi-final berth at the ATP World Tour Finals on Friday, claiming the victory he needed over Robin Soderling, to send 2008 champion Novak Djokovic spinning out of the tournament.
Russia's Nikolay Davydenko became the highest seed to exit the Pacific Life Open but three-times champion Roger Federer barely broke sweat in reaching the fourth round in Indian Wells on Tuesday. Crowd favourite and top seed Federer, back in action at Indian Wells after recovering from illness, outclassed Frenchman Nicholas Mahut in only 53 minutes.
Top seed Nikolay Davydenko of Russia on Wednesday pulled out of the Chennai Open ATP tournament and Australian Open Grand Slam owing to an injury to the heel of his left foot.
Russia's Elena Dementieva gave herself an early birthday present when she rallied after dropping the first set to beat Serena Williams 5-7 6-1 6-1 and win her maiden Kremlin Cup title on Sunday.
James Blake beat Russia's Nikolay Davydenko 2-6, 6-4, 7-5 in the Shanghai Masters.
While Mauresmo and Davydenko made their exits, former Australian Open finalists Kim Clijsters and Marcos Baghdatis signalled their intentions with impressive victories.
World number four Nikolay Davydenko returned to action on Saturday when he teamed up with Igor Andreev to give Russia a 2-1 lead in the Davis Cup quarter-final against the Czech Republic on Saturday. Russian captain Shamil Tarpishchev had left out Davydenko from Friday's singles after he flew in late to Moscow following his triumph in Miami last weekend.
Top seed Nikolay Davydenko tumbled out of the St Petersburg Open in the second round, going down to Croatian qualifier Marin Cilic.
Sweden's Robin Soederling dumped top seed Nikolay Davydenko out of the opening round of the Marseille Open 3-6, 6-4, 6-1 on Wednesday.