An additional, nevertheless informal, tennis format is termed Canadian doubles. This consists of a few players, with one human being playing towards a doubles group. The only player gets to employ the alleys Ordinarily reserved only for a doubles team. Fast4 is a shortened format that provides a "speedy" alternate, https://www.copa69.com/%e0%b9%81%e0%b8%97%e0%b8%87%e0%b8%9a%e0%b8%ad%e0%b8%a5-%e0%b8%a7%e0%b8%b1%e0%b8%99%e0%b8%99%e0%b8%b5%e0%b9%89-%e0%b8%81%e0%b8%b1%e0%b8%9a-copa69/