Nick Kyrgios reacts on social media after his mother was reportedly held at gunpoint

Tennis player Nick Kyrigos has admitted to having struggles with his sleep this week after police accused a man of threatening the Australian's mother at gunpoint and stealing a Tesla from her.

A 32-year-old suspect appeared in ACT Magistrates Court on Tuesday, facing numerous charges including aggravated robbery and driving a stolen vehicle. Local media has reported that he was denied bail, citing court documents.

The Australian Broadcasting Corporation (ABC) has said the man pointed a long-barrelled gun at Kyrgios’s mother Norlaila and demanded the keys to the car.

It is also understood that the tennis star used the Tesla app to help locate the movements of the stolen vehicle in order to aid the police's search, having called triple-0 prior.

Nick Kyrgios

Kyrigos took to Instagram to say: “Last couple days has been rough … haven’t slept much and battling a little. Appreciative of all the support.”

ACT Police revealed that they had seized a shotgun they believed was used in the incident as well as two other firearms in a statement released on Thursday.

“On the afternoon of Tuesday … police executed a search warrant at a residence in Gilmore and located a shotgun, believed to be the firearm used during the robbery,” the statement said.

Currently 26th in the men's singles rankings, the Australian is yet to return to action following knee surgery having withdrawn from the Australian Open in January.

Last month, the 28-year-old revealed that he would be representing The World against Europe at the Laver Cup in Vancouver. However, the tournament is scheduled to take place September 22-24 with it unclear whether Kyrgios will compete before then.

Reaching his peak ATP singles ranking of 13 in 2016, the Australian is in danger of seeing his current ranking drop even further.

Having reached the final at Wimbledon and the US Open quarter finals last year, Kyrgios has not played a competitive match at the elite level since he withdrew from a tournament in Japan last October because of his knee injury.