Boris Becker said Daniil Medvedev should seek professional help in the wake of his "public meltdown" during Sunday's US Open first-round defeat by Benjamin Bonzi.
Ivo Karlovic ousted sixth seeded German Benjamin Becker 7-5 7-6 in the first round of the U.S. Clay Court Championships on Monday.
Former champion Daniil Medvedev was fined a total of $42,500 by the US Open on Wednesday for his spectacular meltdown during a loss to Benjamin Bonzi at the start of the week.
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.
Germany's Benjamin Becker defeated Dutch wild card entry Raemon Sluiter 7-5, 6-3 to win the Den Bosch Open final on Saturday. In the women's event, Tamarine Tanasugarn of Thailand had earlier successfully defended her title by defeating 19-year-old Yanina Wickmayer 6-3, 7-5.
Former world number one Gustavo Kuerten's hopes of reaching the Las Vegas Open quarter-finals were dented when he lost to the German in his opening round-robin match.
Unseeded German Benjamin Becker stunned third-seed Tomas Berdych to reach his first ATP final at the Thailand Open on Saturday.
German sixth seed Benjamin Becker beat Marat Safin to set up a semi-final meeting with Ivo Karlovic, who had earlier dispatched fifth seeded American Mary Fish at the San Jose Open.
The Russian had his endurance tested to the limit by the German before coming through the first round of the Australian Open.
The sixth-seed Russian beat unseeded German Benjamin Becker 6-2, 6-1 to win his second title of the year.
Divij Sharan and Purav Raja staged a spectacular comeback to shock third seeds Rajeev Ram and Benjamin Becker and storm into the semi-finals of the ATP Challenger in Guadalajara, Mexico, on Friday. The unseeded Indian pair beat the American-German combo 6-4, 3-6, 10-8 in 70 minutes.
American Ginepri, who won the Indianapolis title in 2005 and reached the semi-finals last year, was upset by 83rd-ranked Michael Berrer of Germany 3-6 6-2 6-1.
Big-serving American John Isner produced the first upset at the LA Open with a 7-6, 7-6 victory over seventh-seeded German Benjamin Becker in the opening round on Tuesday. Fifth-seeded Russian Igor Kunitsyn eased into the second round with a 7-5, 6-2 victory over Indian qualifier Somdev Devvarman and Argentina's Leonardo Mayer crushed French qualifier Josselin Ouanna 6-2, 6-3.
Coach Boris Becker can help Novak Djokovic acquire a greater mental toughness to better his recent record in Grand Slam finals, the Serb said ahead of the Dubai Championships which begin on Monday.
Twice defending champion Tommy Haas was knocked out of the Memphis Championships on Wednesday, losing 3-6, 6-2, 7-5 to fellow German Benjamin Becker.
The third seed registered an emphatic 6-0, 6-2, 7-6 win over German Benjamin Becker in the first round of the Australian Open
World number one Roger Federer began the defence of his Madrid Masters crown with a 6-2, 7-6 dismissal of Benjamin Becker in the second round on Tuesday.
Andy Roddick and Andy Murray eased into the quarterfinal of the Memphis International.
Top seed James Blake will play tournament specialist Xavier Malisse in the Delray Beach International final on Sunday.
The world No 1 blasted past Germany's Benjamin Becker while the former British No 1 beat South Korea's Lee Hyung-taik in the semi-finals.
China's Li Na became the first player to reach the round of 16 at this year's US Open when she defeated Britain's Laura Robson 6-2, 7-5 on Friday.
Top seeds Leander Paes and Lukas Dlouhy earned a shot at their second title of the season after reaching the summit clash of the UNICEF Open with a win over Benjamin Becker and Scott Lipsky.
Top seeds Leander Paes and Lukas Dlouhy progressed to the semi-finals of the UNICEF Open, defeating Thiemo de Bakker and Robin Haase in straight sets in s-Hertogenbosch, The Netherlands. The Indo-Czech pair beat the Dutch wild card entrants 7-5, 6-3 in the quarter-finals of the ATP 250 event.
World number two Roger Federer closed in on his sixth Halle Open title with a tough 7-6, 6-4 win over local favourite Philipp Petzschner in the semi-finals in Germany on Saturday.
The men's third seed entertained the crowd after his first round match with an impersonation of his friend Maria Sharapova.
World number four Novak Djokovic eased past Austrian Juergen Melzer 6-1, 6-4 at the Halle tournamenton Friday to set up a semi-final clash with Belgian qualifier Olivier Rochus.
Leander Paes' new year and new partnership with Australian Paul Hanley began on a sour when they were beaten by Benjamin Becker and Oliver Marach in the opening round of the Next Generation Adelaide International in Adelaide on Wednesday.
Germany's Tommy Haas beat world number nine Jo-Wilfried Tsonga 6-3, 7-6 on Wednesday to book his spot in the grasscourt Halle tournament quarter-finals.
Prakash Amritraj's brilliant run at the euro 85,000 ATP Challenger event in Rhodes, Greece, ended on a disappointing note, the Indian conceding his semi-final match due to a leg injury. Up against seventh seeded German Benjamin Becker, Prakash was trailing 1-6, 2-4 when he opted out of the contest.
Stanislas Wawrinka fluffed two match points, crashing out 3-6, 7-6, 7-6 to Germany's Benjamin Becker in the first round at Swiss Indoors.
The Spaniard lost 6-4, 7-6 to France's Marc Gicquel in the first round of the Lyon tournament.
The Indo-Czech pair beat the Danish-German pair of Kristian Pless and Benjamin Becker in the quarter-finals.
The Indo-Czech duo scored a 6-4, 6-2 win over the Swiss-German pair of Yves Allegro and Michael Kohlmann.
Three times champion Andy Roddick cruised to a 6-3, 6-2 second round victory over Benjamin Becker in the Washington Classic on Wednesday in his first match since his five-set loss to Roger Federer at Wimbledon.
Defending champions Andy Murray will play Ivo Karlovic in the final of the San Jose Open.
In the other semi-final at the San Jose Open, German sixth seed Benjamin Becker, who upset Marat Safin will take on Ivo Karlovic.
Former world No.1 Ana Ivanovic suffered a shock 6-7(4), 1-6 loss against Denisa Allertova of Czech Republic in the women's singles first round at the 2016 US Open on Tuesday. Ivanovic, the 2008 French Open winner, started off well but failed to maintain her momentum. With the scored tied 6-6, the first set went into tie-break and the Serbian star failed to keep her nerves.
Two-time Grand Slam champion Lleyton Hewitt has flagged his retirement after a record 20th campaign at his home Australian Open next year.
The fifth seed's success made it the first time a Japanese male player had reached the last eight at Roland Garros since Jiro Satoh made it to the semi-finals in 1931 and 1933.
Top seed Serena Williams dropped the second set before bouncing back to beat compatriot Christina Mchale 6-3, 5-7, 6-2 in second-round action at the Miami Open in Florida on Thursday.