Auger-Aliassime exits Shanghai Masters 4th-round match with knee injury in opening set

Canadian Felix Auger-Aliassime is out of the Shanghai Masters after suffering a knee injury.

The fifth-ranked Montrealer was forced to retire from his fourth-round match against Norway's Casper Ruud on Wednesday in China.

Auger-Aliassime trailed 5-2 in the opening set before retiring after just 35 minutes.

He appeared injured and received treatment before deciding he couldn't continue.

Ruud advances to the quarterfinals, where he'll face Spain's Rafael Jodar.

Jodar advanced with a 6-7 (7), 6-4, 6-2 victory over Dutchman Botic van de Zandschulp.

Auger-Aliassime defeats Spain's Busta, advances to Round of 16 in Shanghai

Jodar won after being a set down for third straight match and reached the quarterfinals.

The 20-year-old Spaniard beat Botic van de Zandschulp 6-7(4), 6-4, 6-2, having previously made comebacks to beat Thiago Agustin Tirante in the second round and Jiri Lehecka in the third round.

Daniil Medvedev is back in the Shanghai Masters quarterfinals after getting the better of Stefanos Tsitsipas in the latest chapter of their combustible longtime rivalry.

There was no real drama this time, though, as the fifth-seeded Medvedev won 6-4, 7-5 to become only the fourth player — after Roger Federer, Novak Djokovic and Andy Murray — to reach the last eight of the tournament in three straight years.

There have been verbal flare-ups in previous meetings between Medvedev and Tsitsipas down the years, including in the Australian Open semifinals in 2022.

Medvedev DQ'd from China Open semifinal for hitting fan with ball during match

Tommy Paul takes on Zizou Bergs, who beat Carlos Alcaraz on Monday, later for the right to play Medvedev.

The lineup for the quarterfinals in the top half of the draw was set on Tuesday: