Elena Baltacha is unsure if the thumping she received from Petra Kvitova would be her last grand slam appearance at Wimbledon.

Baltacha was facing the possibility of being whitewashed when defending champion Kvitova clinched the first set 6-0, but the Scot embarked upon a brief comeback to lose 6-4 in the second.

Baltacha, who has struggled with injuries recently, said: "Last year I said I was going to retire after the Olympics, but I think I'm going to take it on a week-by-week basis. If I still really enjoy it, if I still believe I'm improving and I still love it, then I'll carry on."

She added: "I still enjoy competing and at the moment I want to keep going, but I don't want to put any pressure on myself. If I get to a week where I say I don't want to do it anymore, then I will stop."

Facing a highly impressive Kvitova, twenty-eight-year-old Baltacha seemed destined for a humiliating double-bagel defeat when she was broken in the first game of the second set after the Czech took the first in 22 minutes.

The Scot thought she had won the first game when she won a rally while she had advantage, but the umpire over-ruled what seemed a winning point after she deemed Baltacha had put Kvitova off by shouting before the point had been won.

"I had a bit of a Serena moment. I shouted 'Come on!'," Baltacha said. "I honestly thought she wasn't going to get anywhere near the ball I hit so I shouted. Those are the rules. I couldn't really argue that."

Baltacha could also not argue with the comprehensive nature of the defeat but she hung on to the consolation that she was not completely whitewashed.

"The last time I got bagelled was when I was 11 or 12. That wasn't a nice feeling," the Scot added. "I didn't want that to happen again. She is a very classy player. She will retain her title if she plays like that."

Kvitova revealed afterwards that a back niggle had prevented her from going full throttle in the second set, saying: "The second set I started to feel my back a little bit. I think it will be all right tomorrow. It's just stiff."