Ymer won 7–6, 4--6, 6–1 against the Scots after a drama that lasted two hours and fifty minutes.
In the first set, Ymer saved four set points.
Murray at one point threw his racket in frustration.
- I still have a lot to do, but it's a very good start, says Ymer after the match.
In the next match, the 115th ranked Swede meets Russian Aslan Karatsev, seeded as number 15.