It was an even match where the 18-year-old Swede was finally defeated.
Leo Borg lost in the third round of the French Open.
He faced 16-year-old Chinese Juncheng Chang on Wednesday and went out for the numbers 6-7, 6-3-, 6-7.
On paper, Juncheng Chang was the toughest possible opposition for Leo Borg, as he was first seeded in the tournament.
Leo is the son of the legendary Björn Borg who won the grand slam tournament six times.