Look: Dubai Duty Free Tennis Championships - ATP action Day 1 as Murray and Djokovic contend

The fans packed out Centre Court on Monday to watch a thrilling day of tennis at the Dubai Duty Free Tennis Championships.

Former world No. 1 and two-time Wimbledon champion took on Australian qualifier Christopher O'Connell.

The world No. 158 took the first set on a tie-break before Murray levelled in the second.

And the Scotsman prevailed in a three-hour epic, 6-7, 6-3, 7-5.

Novak Djokovic was in action in the final match on Centre Court as he took on Italian wildcard Lorenzo Musetti

The Serbian world No. 1 came through 6-3, 6-3 to kickstart his season in style.

Earlier, Filip Krajinovic struggled past Malek Jaziri in a thrilling first-round battle.

The Croat edged his way to a 6-7 6-2 6-4 victory in a highly entertaining two hours 18 minutes.

Qualifier Jiri Vesely earned a surprise 6-4, 7-6 victory over Marin Cilic to also reach the second round.

Cilic, a former US Open champion and world No. 3, had recently claimed an impressive win over world No. 6 Andrey Rublev to reach the fourth round of the Australian Open, while Vesely had failed to win a main draw match in his three previous visits to Dubai.

Another qualifier reached the second round as Taro Daniel defeated David Goffin 6-3 7-6.