Frederik Nielsen defeated Evgeny Donskoy 2-6 6-3 6-2 7-6 in the RUS vs DEN round robin on hard.
Nielsen F. came through in four sets.
Frederik Nielsen beat Evgeny Donskoy 2-6 6-3 6-2 7-6. Umpiry, "Frederik Nielsen vs Evgeny Donskoy — RUS vs DEN Round Robin", https://umpiry.com/match/2015-03-06/donskoy-vs-nielsen-rus-vs-den-rr?utm_source=cite (as of 6 March 2015).