Li Na has booked a place in the quarter-finals of the Cincinnati Open following a 6-2 6-2 win over Johanna Larsson.

The Chinese pro took control early in the contest by snatching a break of serve at the first time of asking, while Larsson could only get two games on the board in the opening set.

While the second set started off with games going by the way of serve, it took an impressive break from Li to push Larsson off her stride.

While the Swedish pro tried to come back with a strong serve, it wasn't enough to trouble Li, who safely secured a place in the next round.