Former world number one Roger Federer has praised his performance against Jo-Wilfried Tsonga, insisting that his tactics worked.
The Swiss pro has booked himself into the quarter-finals of the Australian Open with a straight-sets win over the Frenchman.
"I thought I played really well tonight," BBC Sport quotes Federer as saying.
"You've got to bring your best game [against Tsonga] because he dictates play a lot. I think I did a good job dictating play.
"Jo does that to you, he makes you play aggressive, because if you don't he will. I thought the tactics worked well tonight. We spoke about it before the match. I don't go to matches unprepared before like I used to."
Federer will take on Andy Murray for a place in the semi-finals.
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