American great Jimmy Connors has put his hand up to mentor wayward Australian Nick Kyrgios and help get his career back on track.
The 64-year-old Connors, a famous firebrand through a long career boasting eight grand slam titles, made his approach on Twitter, saying: "It's you (sic) choice - or just be mediocre!"
Kyrgios-- you want to be the best-- come see me-- you will learn to play, excite, and to win!! It's you choice-- or just be mediocre!gd luck— Jimmy Connors (@JimmyConnors) October 20, 2016
Connors previously served a 19-month stint as coach for compatriot Andy Roddick from 2006 to 2008, guiding the grand slam winner to a US Open final and five ATP titles.
However, his last high-profile coaching gig, with Maria Sharapova in 2013, was over as soon as it began, the Russian former world No.1 firing him after one match.
Connors' tweet comes after the latest controversy involving Kyrgios.
The world No.14 partly blamed mental fatigue for last week's meltdown at the Shanghai Masters, which has resulted in him receiving an eight-week ban from the ATP Tour and more than $50,000 in fines.
His ban will be reduced to three weeks if he meets conditions laid down by the sport's governing body, including consulting a sports psychologist.
However he cast doubt on that happening when he responded with "probs not" to a Twitter question about whether he would get his ban reduced after meeting with a psychologist.
Kyrgios was accused of unprofessional behaviour by the umpire during this second-round loss to Mischa Zverev in Shanghai a week ago.
He argued with spectators after appearing to put in little effort during various stages of the match - even walking to the change of ends before one of his opponent's serves had landed.
After the match, Kyrgios said he owed his fans nothing and admitted taking "the easy way out".
Other thoughts from Kyrgios in Wednesday's Twitter Q&A included the 21-year-old indicating he may play fewer tournaments in 2017 when asked what his goals were for next year.
"More time off," he replied. But there seems little scope for Kyrgios to cut down his schedule next season.
Most professionals play between 20 and 30 events, with some cramming in almost 40.
Kyrgios would have contested 21 events this season had his eight-week ban not ruled him out of upcoming tournaments in Basel and Paris.
Kyrgios was also questioned on Wednesday about whether he had always given 100 per cent effort on the tennis court, replying "nah man".
And he responded with "lol" when asked how he felt about playing tennis.