BERNARD Tomic’s commitment to tennis is expected to come under the microscope again after the Australian pulled out of his first round match against Donald Young in Acapulco citing “unbearable heat” ... and then played doubles.

The Australian lost the first set and looked disinterested and lethargic at stages before calling time on the clash.

The temperature in the Mexican city was 27 degrees.

However, fans reacted with fury just hours after the retirement when Tomic was back on court competing in the doubles competition.

The 'unbearable heat' in Acapulco must not have had too much lasting effect on Tomic given he's back out there now playing doubles. — Ricky Mangidis (@rickm18) March 1, 2017

Tomic is playing doubles right now….are you F$%*ing serious — Chris Stevens (@TheLadfromAus) March 1, 2017

Bernard Tomic is currently on court playing doubles; only hours after retiring from 1st round singles match! #tennis #ATPAcapulco — Trent Masenhelder (@tmase04) March 1, 2017

Omg Tomic is playing doubles? What a joke. — Pedro Lavandoski (@plavandoski) March 1, 2017

Tomic playing live doubles as we speak but pulls out of singles at Acapulco citing unbearable heat!!!!!!! — BrettPhillips (@BrettAPhillips) March 1, 2017

It has been a disappointing 2017 season so far for Tomic with just two wins to his name (both at the Australian Open) and this latest withdrawal will do little to aid his bid to retain grand slam seeding status after slumping to No 41 in the world.

It also marks his third consecutive first round defeat.

Little over a month ago, 24-year-old Tomic controversially withdrew from Australia’s Davis Cup tie with the Czech Republic citing “scheduling issues”.

It’s not the first time the Queenslander has used heat as the reason behind a withdrawal.

Last May at the Rome International he was unable to continue against Benoit Paire, pulling out of the contest after just eight minutes.

It was 24 degrees celsius.