Novak Djokovic enjoys a beach day with friends in the sun after Miami Open withdraw

Novak Djokovic has been spotted soaking up some sun, as he enjoyed a beach day with friends after withdrawing from the Miami Open due to scheduling conflicts, just a week after his shock loss at Indian Wells. 

The 36-year-old, World No. 1 proved that age is just number while appearing shirtless at Miami Beach on Monday, as he showed off his toned physique when not wearing a grey undershirt over a navy-blue swimsuit. 

He also wore a silver chain and some posh white sunglasses to complete his look, while also making sure he doesn't get sunburnt. 

Djokovic - the record holder for the most Grand Slam titles in the history of men's singles (24) - even had time to pose for a few snaps with fans, as the tennis star was asked by a random if he could take a picture with him on his way off the white sand. 

Djokovic's wife and high school sweetheart, Jelena, was nowhere to be found, however, along with their son and daughter. 

Novak Djokovic was at Miami Beach on Monday, two days after withdrawing from Miami Open

The World No. 1 brought his straw bag to the beach as he was seen on his phone several times 

Djokovic, 35, took in some vitamin D while soaking up the sun by the ever so clear Miami water

The record holder for the most Grand Slam wins in men's tennis even chatted with friends, too

He proved that age is just a number by showing off his muscular physique in a blue swimsuit

Djokovic's latest public appearance comes after his shock withdraw from the Miami Open was announced on Saturday. 

He told fans he wouldn't play in Florida through his social media accounts following his 6-4, 3-6, 6-3 defeat to unheralded Luca Nardi on Monday in the third round of the BNP Paribas Open (Indian Wells). 

'At this stage of my career, I'm balancing my private and professional schedule. I'm sorry that I won't experience some of the best and most passionate fans in the world,' Djokovic wrote. 

Djokovic completed his beach fit with a gray undershirt and some posh looking sunglasses

On his way off Miami's white sand, the tennis star was approached by a local fan to take a pic'

Gladly obliging, Djokovic, who lost at Indian Wells, stopped to make sure the fan got his snap

Another fan approached the right-handed Serbian while Djokovic was on his way to the exits

But, once again, The Joker showed why he is beloved by so many by kindly posing for the pic

Nardi, who is ranked No. 123, become the lowest-ranked player to beat Djokovic in a Grand Slam or ATP Masters 1000 level event, surpassing No. 122 Kevin Anderson in 2008 in Miami.

The 20-year-old Italian got into the field as a "lucky loser," which is a player who stumbled on the final hurdle in qualifying but made it into the main draw as a replacement for an injured player who pulled out before the first round.

The 36-year-old Djokovic is a six-time champion in Miami. 

The hardcourt tournament begins on Wednesday.