Jack Draper, riding high after capturing a first ATP Masters 1000 title at Indian Wells last year, returns to California in rebuilding mode again after a near six-month injury absence.England's Draper halted Carlos Alcaraz's bid for a rare Indian Wells three-peat when he stunned the Spaniard in the semi-finals last year, then beat Holger Rune in the final.

Holger Rune’s year took a turn for the worse when he ruptured his Achilles during the Stockholm Open, forcing him out of action. He had surgery soon after and has since kept fans updated on his progress as he works towards a return to the court.

Danish tennis player Holger Rune chose Doha to continue his rehabilitation from an Achilles tendon rupture and regretted that decision.

Estonia's second highest-ranked tennis player Daniil Glinka is through to round two of the ATP Challenger 75 tournament in Lugano, Switzerland.