Japan's Ito beaten in Australian Open

Japan's Ito beaten in Australian Open

MELBOURNE, Australia - Tatsuma Ito of Japan returns a shot during a first-round match against Martin Klizan of Slovakia at the Australian Open tennis championships in Melbourne on Jan. 19, 2015. Klizan won 7-6, 6-2, 6-4.

Japan's Ito beaten in Australian Open

Japan's Ito beaten in Australian Open

MELBOURNE, Australia - Tatsuma Ito of Japan returns a shot during a first-round match against Martin Klizan of Slovakia at the Australian Open tennis championships in Melbourne on Jan. 19, 2015. Klizan won 7-6, 6-2, 6-4.

Japan's Ito advances to U.S. Open 2nd round

Japan's Ito advances to U.S. Open 2nd round

NEW YORK, United States - Japanese Tatsuma Ito returns a shot during a match against American Steve Johnson in the first-round match of the U.S. Open on Aug. 27, 2014, in New York. Ito advanced to the second round as Johnson retired at 2-6, 6-3, 7-5, 1-4, due to severe cramping in the hot and humid conditions.

Japan's Ito advances to U.S. Open 2nd round

Japan's Ito advances to U.S. Open 2nd round

NEW YORK, United States - Japanese Tatsuma Ito returns a shot during a match against American Steve Johnson in the first-round match of the U.S. Open on Aug. 27, 2014, in New York. Ito advanced to the second round as Johnson retired at 2-6, 6-3, 7-5, 1-4, due to severe cramping in the hot and humid conditions.

Ito loses in 2nd round of Japan Open

Ito loses in 2nd round of Japan Open

TOKYO, Japan - Japan's Tatsuma Ito reacts during a men's singles second round match at the Japan Open at Ariake Tennis Forest Park in Tokyo on Oct. 5, 2011. Bernard Tomic of Australia beat Ito 6-7(4), 6-1, 7-5.

Japan's Ito defeated in 1st round of U.S. Open

Japan's Ito defeated in 1st round of U.S. Open

NEW YORK, United States - Japan's Tatsuma Ito returns the ball to Feliciano Lopez of Spain in a men's singles first-round match at the U.S. Open tennis championships in New York on Aug. 31, 2011. Ito was defeated by Lopez 2-6, 4-6, 4-6.

Japan takes 2-0 lead vs Philippines at Davis Cup

Japan takes 2-0 lead vs Philippines at Davis Cup

OSAKA, Japan - Japan's Tatsuma Ito returns the ball in a first round Davis Cup Asia/Oceania Group 1 match against Treat Huey of the Philippines at Namihaya Dome on March 5, 2010. Ito pulled out a five-set victory over Huey, winning 3-6, 6-3, 6-4, 3-6, 6-4.

Japan takes 2-0 lead vs Philippines at Davis Cup

Japan takes 2-0 lead vs Philippines at Davis Cup

OSAKA, Japan - Japan's Tatsuma Ito acknowledges spectators after defeating Treat Huey of the Philippines in the first round of Davis Cup Asia/Oceania Group 1 matches at Namihaya Dome on March 5, 2010. Ito pulled out a five-set victory over Huey, wnnning 3-6, 6-3, 6-4, 3-6, 6-4.

Wawrinka moves to quarterfinals at Japan Open tennis

Wawrinka moves to quarterfinals at Japan Open tennis

Stan Wawrinka of Switzerland stretches for a ball during a match against Japan's Tatsuma Ito at the Japan Open tennis championships in Tokyo on Oct. 7, 2015. Wawrinka won 6-3, 2-6, 6-4 to advance to the quarterfinals. (Kyodo)[ ==Kyodo

Japan's Ito defeated in 1st round of U.S. Open

Japan's Ito defeated in 1st round of U.S. Open

NEW YORK, United States - Japan's Tatsuma Ito returns the ball to Feliciano Lopez of Spain in a men's singles first-round match at the U.S. Open tennis championships in New York on Aug. 31, 2011. Ito was defeated by Lopez 2-6, 4-6, 4-6. (Kyodo)

Japan takes 2-0 lead vs Philippines at Davis Cup

Japan takes 2-0 lead vs Philippines at Davis Cup

OSAKA, Japan - Japan's Tatsuma Ito returns the ball in a first round Davis Cup Asia/Oceania Group 1 match against Treat Huey of the Philippines at Namihaya Dome on March 5, 2010. Ito pulled out a five-set victory over Huey, winning 3-6, 6-3, 6-4, 3-6, 6-4. (Kyodo)

Japan takes 2-0 lead vs Philippines at Davis Cup

Japan takes 2-0 lead vs Philippines at Davis Cup

OSAKA, Japan - Japan's Tatsuma Ito acknowledges spectators after defeating Treat Huey of the Philippines in the first round of Davis Cup Asia/Oceania Group 1 matches at Namihaya Dome on March 5, 2010. Ito pulled out a five-set victory over Huey, wnnning 3-6, 6-3, 6-4, 3-6, 6-4. (Kyodo)

Japan's Ito beaten in Australian Open

Japan's Ito beaten in Australian Open

MELBOURNE, Australia - Tatsuma Ito of Japan returns a shot during a first-round match against Martin Klizan of Slovakia at the Australian Open tennis championships in Melbourne on Jan. 19, 2015. Klizan won 7-6, 6-2, 6-4. (Kyodo)

Japan's Ito advances to U.S. Open 2nd round

Japan's Ito advances to U.S. Open 2nd round

NEW YORK, United States - Japanese Tatsuma Ito returns a shot during a match against American Steve Johnson in the first-round match of the U.S. Open on Aug. 27, 2014, in New York. Ito advanced to the second round as Johnson retired at 2-6, 6-3, 7-5, 1-4, due to severe cramping in the hot and humid conditions. (Kyodo)

Ito loses in 2nd round of Japan Open

Ito loses in 2nd round of Japan Open

TOKYO, Japan - Japan's Tatsuma Ito reacts during a men's singles second round match at the Japan Open at Ariake Tennis Forest Park in Tokyo on Oct. 5, 2011. Bernard Tomic of Australia beat Ito 6-7(4), 6-1, 7-5. (Kyodo)

Tennis: Australian Open

Tennis: Australian Open

Novak Djokovic (L) of Serbia shakes hands with Japan's Tatsuma Ito after his second-round win at the Australian Open tennis tournament in Melbourne on Jan. 22, 2020. (Kyodo) ==Kyodo

Tennis: Australian Open

Tennis: Australian Open

Novak Djokovic of Serbia takes on Japan's Tatsuma Ito in the second round of the Australian Open tennis tournament in Melbourne on Jan. 22, 2020. (Kyodo) ==Kyodo

Tennis: Australian Open

Tennis: Australian Open

Novak Djokovic of Serbia takes on Japan's Tatsuma Ito in the second round of the Australian Open tennis tournament in Melbourne on Jan. 22, 2020. (Kyodo) ==Kyodo