Andy Murray continued his bid for a fourth Olympic medal as he and Joe Salisbury reached the quarter-finals of the men's doubles in Tokyo.
The British duo backed up their impressive opening-round win to beat Germany's Kevin Krawietz and Tim Puetz 6-2 7-6 (7-2).
They will play either America's Rajeev Ram and Frances Tiafoe or Marin Cilic and Ivan Dodig of Croatia next.
Liam Broady will contest his singles match later on Tuesday.
Murray and Salisbury - a two-time Grand Slam doubles champion - have come through both their matches in straight sets.
No man has won four Olympic medals since tennis returned to the Games in 1988.