‘SUPER, SUPER NERVOUS’: Bianca Andreescu returns with win at Aussie Open

However, Buzarnescu, 32, raised her game in the second set and leveled the match as Andreescu’s unforced error count began to creep up with the Canadian appearing a bit too eager to hit winners of every shot.

With fatigue setting in from a lack of match practice, Andreescu found herself down 0-40 at 3-3 in the decider but dug deep and managed to find a different gear, holding serve and then winning the next two games, sealing victory with a forehand overhead winner.

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Andreescu hit 27 winners compared to 11 from world No. 138 Buzarnescu, though she committed five more unforced errors than the Romanian.

The Canadian next faces a second-round matchup against Taiwan’s Hsieh Su-wei, who earlier beat U.S. Open quarter-finalist Tsvetana Pironkova of Bulgaria 7-5 6-2.

“I have played her before, so I kind of know what to expect,” she said of Hsieh.

“She’s a pretty crafty player, so I think that’s going to be a fun match.”