Sergiy suffered a 4-6, 7-6 (2), 6-7 (4) defeat to world no.193 Blaz Kavcic in Open de Rennes second round action on Thursday.
The fourth seed came back from being a set and a break behind to force a decider. Unfortunately, his rival had stronger finish in the third set tie-break and managed to win this highly competitive contest in two hours and 40 minutes.
Stats: aces (13-15), double faults (2-1), total points won (110-123).
Sergiy and his doubles partner Roman Jebavy play against Sanchai and Sonchat Ratiwatana of Thailand in quarter-final clash later today.