Vasek Pospisil’s defence of his finals appearance in Sofia last fall began with a first-round match against qualifier Egor Gerasimov.
Who is a tough customer, and proved to be so as he send the Canadian packing in the first round.
Pospisil had a match point in the second-set tiebreak, but couldn’t convert it.
Currently ranked No. 68, Pospisil will fall at least outside the top 80 with the loss.
The Canadian has only won back-to-back matches once in 2021 – and that came with a retirement by Alejandro Davidovich Fokina at Eastbourne.
He has lost in the first round of eight of his 14 tournaments so far this season.
Location: Sofia, Bulgaria
Category: ATP 250
Surface: Indoor Hard
Dates: Sept. 27 – Oct. 3, 2021
Prize money: €481,270
Draws: S28 – D16
Tuesday, Sept. 28, 2021
Singles, first round
[Q] Egor Gerasimov (BLR) def. Vasek Pospisil (CAN) 57 76 (8) 63
 John Millman (AUS) def. Mikael Ymer (SWE) 62 64
Laslo Djere (SRB) def. [Q] Pedro Martinez (ESP) 76 (5) 63
Marcos Giron (USA) def Jaume Munar (ESP) 67 (2) 61 64
[WC] Dimitar Kuzmanov (BUL) def Lorenzo Musetti (ITA) 67 (4) 76 (3) 63
Doubles, first round
 Oliver Marach / Philipp Oswald (AUT) def. Aisam-Ul-Haq Qureshi (PAK) / Rohan Bopanna (IND) 62 67 (1) [10-7]
Roman Jebavy (CZE) / Matwe Middelkoop (NED) def. [WC] Adrian Andreev / Alexandar Lazarov (BUL) 62 64