Diego Schwartzman, Guido Pella, Cristian Garin and Pablo Cuevas are on the preliminary list for the ATP 500 in Washington, according to the journalism Daniel Miche published on his Twitter.
The Peque is the fifth seed, behind Medvedev, Tsitsipas, Goffin and Bautista Agut. Behind the Argentine appear Khachanov, Shapovalov and Garín.
Guido Pella appears as 22nd seed while Cuevas entered 37. Londero (for one place) and Delbonis were left out of the potential main draw of the tournament that would mark the return of the ATP.