Latest results Day one photos

The Spaniard beat the British number four, who was playing in the main draw of a Grand Slam outside Wimbledon for the first time, 6-3 3-6 4-6 6-1 6-4.

Bogdanovic recovered after a slow start and repeatedly served his way out of trouble as he went two sets to one up.

But the 20-year-old could not keep up the pace as Calatrava held on, despite a nervous end to the fifth set.

Calatrava goes on to face experienced Czech Jiri Novak in the second round.

Bogdanovic won three matches in qualifying without losing a set and should still see his ranking rise from 206 despite the defeat.