Martina Navratilova vs Steffi Graf in one of the greatest matches ever! | US Open 1991 Semifinal

34-year-old Martina Navratilova takes on 22-year-old Steffi Graf in the semifinals of the US Open 1991. No. 6 seed Navratilova has lost four straight matches to No. 1 seed Graf and is trying to regain a foothold in the women's game following her earliest exit at Wimbledon in 14 years. While Graf is looking to build on her championship victory at Wimbledon and silence the discussion around her injuries and personal problems. Can Navratilova prove that age is just a number with her flawless serve and volley game? Or will Graf's slice and dice see her through to a fifth consecutive US Open final? Don't miss a moment of the US Open! Subscribe now! https://bit.ly/2Pdr81i Twitter:   / usopen   Facebook:   / usopentennis   Instagram:   / usopen   Website: https://www.usopen.org TikTok:   / usopen