Latest update from the WTA1000 Miami tennis tournament: In a recently concluded match, Zheng Qinwen defeated Keys 2-1 to advance to the round of 16.

The specific scores were 4-6, 6-2, 6-4, with Zheng Qinwen reversing the overall match 2-1 against Karen to reach the round of 16. In the quarterfinals, she will face the winner between Sabalenka and McNally.

Post-match summary and reflections.

1. First, congratulations to Zheng Qinwen for advancing to the round of 16, returning strongly after recovering from injury.
2. This victory marks another instance where Zheng Qinwen has defeated a Grand Slam champion, which is quite remarkable and deserves praise.

3. In this match, Zheng Qinwen outperformed her opponent Keys across various statistics. Ace count was 11-4, and both first-serve and second-serve winning percentages were higher than Keys'. Therefore, the win was well-deserved.
4. The opponent in the quarterfinals is likely to be Sabalenka. Zheng Qinwen seems to have a frequent matchup with Sabalenka, having won against her once before; it remains uncertain whether she can secure another victory tomorrow.