© Mike Frey/Shanghai Rolex Masters

Rafael Nadal plays Fabio Fognini in the third round of the Shanghai Rolex Masters.

Nadal, Federer Feature Thursday In Shanghai; Zverev Faces Del Potro

World No. 1 aims to extend winning streak

The top four seeds headline third round action at the Shanghai Rolex Masters on Thursday with Rafael Nadal, Roger Federer, Alexander Zverev and Marin Cilic leading the way.

In the opening match in Qi Zhong Stadium, No. 10 seed Sam Querrey takes on No. 6 seed Grigor Dimitrov, who has won both previous meetings. If Querrey reaches his first Shanghai quarter-final, he will move past Pablo Carreno Busta into ninth position in the Emirates ATP Race to London.

View FedEx ATP Head2Head matchup for Day 5 of the Shanghai Rolex Masters and vote for who you think will win!

Zverev vs del Potro | Dimitrov vs Querrey | Nadal vs Fognini | Federer vs Dolgopolov

In the next match, No. 16 seed Juan Martin del Potro meets #NextGenATP star Zverev for the first time. Last week, the 20-year-old German became the third player to clinch a spot in the Nitto ATP Finals in London. The 29-year-old Argentine is 3-9 vs. Top 10 opponents this season. In his previous match, del Potro defeated another top #NextGenATP player, Andrey Rublev, in straight sets. Del Potro was a Shanghai finalist in 2013, when he lost in straight sets to three-time champion Novak Djokovic.

Following that match, No. 4 seed Cilic faces off against Steve Johnson, who is one of three Americans remaining (John Isner, Querrey) in the third round for the first time in tournament history (since 2009). Cilic is 3-0 against Johnson. Should Cilic win, he'll match his best performance at the event (quarter-finalist in 2012). The third remaining American, Isner, faces Viktor Troicki, who defeated fifth seed Dominic Thiem in the second round, 6-3, 3-6, 7-6(5).

In the evening session, top-seeded Nadal looks to extend his 13-match winning streak when he faces Fabio Fognini. Nadal, who reached the Shanghai final in 2009, is 9-3 lifetime against the Italian and has won their past four meetings. Of Fognini's three wins over Nadal, only one has come on hard court (two wins on clay). Fognini was a finalist two weeks ago at the St. Petersburg Open

In the final match, Federer looks to remain unbeaten (4-0) against qualifier Alexandr Dolgopolov, who has never won a set (0-9) against the Swiss. A qualifier at this event, Dolgopolov outlasted Feliciano Lopez over three sets in his last match. Before this event, Dolgopolov had not been into the Round of 16 at any of his ATP World Tour Masters 1000 appearances this year.

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