The importance of Psychology in Sport

The best five months of Guido Pella's career have brought a Roland Garros preamble like no other for the Argentine.. For the first time, Pella is seeded at a Slam (19), and until now, he's had one of the best clay-court seasons of anyone. He leads the ATP Tour this year with 20 wins on the surface – another reason to be excited for the season's second Grand Slam championship.
https://www.atptour.com/en/news/guido-pella-roland-garros-2019-feature