Slowing down? Federer says no as he advances at French Open
Switzerland's Roger Federer attempts to return serve to Croatia's Marin Cilic during their second round match on day 5, of the French Open tennis tournament at Roland Garros in Paris, France, Thursday, June 3, 2021. (AP Photo/Michel Euler)

Switzerland's Roger Federer attempts to return serve to Croatia's Marin Cilic during their second round match on day 5, of the French Open tennis tournament at Roland Garros in Paris, France, Thursday, June 3, 2021. (AP Photo/Michel Euler)

Jun. 03, 2021 12:16 PM EDT
Switzerland's Roger Federer, right, gives Croatia's Marin Cilic a pat on the back as they meet at the net after Federer defeated him in their second round match on day 5, of the French Open tennis tournament at Roland Garros in Paris, France, Thursday, June 3, 2021. (AP Photo/Michel Euler)

Switzerland's Roger Federer, right, gives Croatia's Marin Cilic a pat on the back as they meet at the net after Federer defeated him in their second round match on day 5, of the French Open tennis tournament at Roland Garros in Paris, France, Thursday, June 3, 2021. (AP Photo/Michel Euler)

Jun. 03, 2021 12:52 PM EDT
United States's Sloane Stephens reacts as she plays against Czech Republic's Karolina Pliskova during their second round match on day 5, of the French Open tennis tournament at Roland Garros in Paris, France, Thursday, June 3, 2021. (AP Photo/Michel Euler)

United States's Sloane Stephens reacts as she plays against Czech Republic's Karolina Pliskova during their second round match on day 5, of the French Open tennis tournament at Roland Garros in Paris, France, Thursday, June 3, 2021. (AP Photo/Michel Euler)

Jun. 03, 2021 08:16 AM EDT
United States's Sloane Stephens plays a return to Czech Republic's Karolina Pliskova during their second round match on day 5, of the French Open tennis tournament at Roland Garros in Paris, France, Thursday, June 3, 2021. (AP Photo/Michel Euler)

United States's Sloane Stephens plays a return to Czech Republic's Karolina Pliskova during their second round match on day 5, of the French Open tennis tournament at Roland Garros in Paris, France, Thursday, June 3, 2021. (AP Photo/Michel Euler)

Jun. 03, 2021 08:22 AM EDT
Switzerland's Roger Federer plays a return to Croatia's Marin Cilic during their second round match on day 5, of the French Open tennis tournament at Roland Garros in Paris, France, Thursday, June 3, 2021. (AP Photo/Michel Euler)

Switzerland's Roger Federer plays a return to Croatia's Marin Cilic during their second round match on day 5, of the French Open tennis tournament at Roland Garros in Paris, France, Thursday, June 3, 2021. (AP Photo/Michel Euler)

Jun. 03, 2021 11:10 AM EDT
Czech Republic's Karolina Pliskova serves to United States's Sloane Stephens during their second round match on day 5, of the French Open tennis tournament at Roland Garros in Paris, France, Thursday, June 3, 2021. (AP Photo/Michel Euler)

Czech Republic's Karolina Pliskova serves to United States's Sloane Stephens during their second round match on day 5, of the French Open tennis tournament at Roland Garros in Paris, France, Thursday, June 3, 2021. (AP Photo/Michel Euler)

Jun. 03, 2021 08:21 AM EDT
Ukraine's Elina Svitolina serves to United States Ann Li during their second round match on day 5, of the French Open tennis tournament at Roland Garros in Paris, France, Thursday, June 3, 2021. (AP Photo/Christophe Ena)

Ukraine's Elina Svitolina serves to United States Ann Li during their second round match on day 5, of the French Open tennis tournament at Roland Garros in Paris, France, Thursday, June 3, 2021. (AP Photo/Christophe Ena)

Jun. 03, 2021 05:55 AM EDT
Sweden's Mikael Ymer wipes his face as he prepares to serve to Gael Monfils of France during their second round match on day 5, of the French Open tennis tournament at Roland Garros in Paris, France, Thursday, June 3, 2021. (AP Photo/Christophe Ena)

Sweden's Mikael Ymer wipes his face as he prepares to serve to Gael Monfils of France during their second round match on day 5, of the French Open tennis tournament at Roland Garros in Paris, France, Thursday, June 3, 2021. (AP Photo/Christophe Ena)

Jun. 03, 2021 11:47 AM EDT
United States's Sloane Stephens plays a return to Czech Republic's Karolina Pliskova during their second round match on day 5, of the French Open tennis tournament at Roland Garros in Paris, France, Thursday, June 3, 2021. (AP Photo/Michel Euler)

United States's Sloane Stephens plays a return to Czech Republic's Karolina Pliskova during their second round match on day 5, of the French Open tennis tournament at Roland Garros in Paris, France, Thursday, June 3, 2021. (AP Photo/Michel Euler)

Jun. 03, 2021 08:09 AM EDT