Tokyo, Japan, 7 October 2015 | AAP/AFP

Nick Kyrgios spared Australia’s blushes in a day of injury and missed opportunities for his countrymen at the Rakuten Japan Open Tennis Championships in Tokyo.

World No.34 Kyrgios shrugged off the disappointment of losing the first set to register a 7-6(3) 6-3 6-3 opening round win over Spain’s Albert Ramos-Vinolas.

The Canberran made heavy work of the clash with the world No.71, failing to capitalise on multiple set points in the opening set and handing back a break in the decider before securing the win.

He’ll now play another Spaniard, Roberto Bautista Agut, who ensured Kyrgios got to avoid another clash with his recent nemesis Richard Gasquet after an upset 6-4 6-1 win over the Frenchman.

Kyrgios at least finished the day on a happier note than three of his contemporaries.

Bernard Tomic and Sam Groth both succumbed to injury and withdrew midway through their opening-round matches.

Meanwhile, Matt Ebden missed a golden opportunity to progress to the second round when he served for the match in the second set against American Austin Krajicek.

Ebden ultimately succumbed 5-7 7-6(4) 7-6(5) in a clash of two qualifiers.