The 23-year-old scored two set-pieces, including a last minute winner, to give Spurs a 2-1 win over Lyon, but felt the team were not 100 per cent
The Welshman added to the set-piece he scored against Newcastle last Sunday with two long-range efforts - the first from 35 yards out in first-half injury time and the second coming with the last kick of the game.
A delightful strike from Samuel Umtiti was sandwiched between the goals, the youngster hitting the ball first-time from an acute angle, leaving Brad Friedel stranded in goal.
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Bale told ITV: "I'm delighted. I've been practising free-kicks on the training ground and I scored one like that last week. Both came at good times in the game.
"Lyon are a good team and we weren't 100 per cent to be honest - we looked a bit tired.
"But the most important thing is we got the win. It's going to be hard going over there, but we're taking this competition seriously."
Spurs travel to France next week with a goal advantage, but Umtiti's away goal leaves the tie firmly in the balance.