![Leonardo Mayer, of Argentina, returns to Donald Young during the Miami Open tennis tournament, Thursday, March 22, 2018, in Key Biscayne, Fla. Mayer won 3-6, 6-4, 6-2. (AP Photo/Lynne Sladky Stock Photo - Alamy Leonardo Mayer, of Argentina, returns to Donald Young during the Miami Open tennis tournament, Thursday, March 22, 2018, in Key Biscayne, Fla. Mayer won 3-6, 6-4, 6-2. (AP Photo/Lynne Sladky Stock Photo - Alamy](https://c8.alamy.com/comp/2MNMC1H/leonardo-mayer-of-argentina-returns-to-donald-young-during-the-miami-open-tennis-tournament-thursday-march-22-2018-in-key-biscayne-fla-mayer-won-3-6-6-4-6-2-ap-photolynne-sladky-2MNMC1H.jpg)
Leonardo Mayer, of Argentina, returns to Donald Young during the Miami Open tennis tournament, Thursday, March 22, 2018, in Key Biscayne, Fla. Mayer won 3-6, 6-4, 6-2. (AP Photo/Lynne Sladky Stock Photo - Alamy
![Roger Federer rushes to Leonardo Mayer win after Cincinnati Masters schedule nightmare | Tennis | Sport | Express.co.uk Roger Federer rushes to Leonardo Mayer win after Cincinnati Masters schedule nightmare | Tennis | Sport | Express.co.uk](https://cdn.images.express.co.uk/img/dynamic/72/590x/Roger-Federer-Cincinnati-Masters-1004928.jpg?r=1534534198925)
Roger Federer rushes to Leonardo Mayer win after Cincinnati Masters schedule nightmare | Tennis | Sport | Express.co.uk
![Getting to Know: Leonardo Mayer - Official Site of the 2023 US Open Tennis Championships - A USTA Event Getting to Know: Leonardo Mayer - Official Site of the 2023 US Open Tennis Championships - A USTA Event](https://photo-assets.usopen.org/images/pics/large/f_USTA766954_20170825_PS5_4565.jpg)
Getting to Know: Leonardo Mayer - Official Site of the 2023 US Open Tennis Championships - A USTA Event
![Argentina's Leonardo Mayer plays against the Czech Republic's Stepanek on the 6th day of the Tennis World Team Cup at Rochusclub in Duesseldorf, Germany, 25 May 2012. Photo: CAROLINE SEIDEL Stock Photo - Alamy Argentina's Leonardo Mayer plays against the Czech Republic's Stepanek on the 6th day of the Tennis World Team Cup at Rochusclub in Duesseldorf, Germany, 25 May 2012. Photo: CAROLINE SEIDEL Stock Photo - Alamy](https://c8.alamy.com/comp/D64DNP/argentinas-leonardo-mayer-plays-against-the-czechrepublics-stepanek-D64DNP.jpg)