It appears Paulina Gretzky’s father does not approve of her fiancé’s off-the-course antics. NHL legend Wayne Gretzky warned Dustin Johnson that he would cancel the wedding if the golfer didn’t change his ways, according to a report.

Sources familiar with the situation told Fox411 that Gretzky’s disappointment with Johnson’s behavior began long before recent reports that the PGA Tour has suspended the 30-year-old over a failed drug test. Apparently, the NHL Hall of Famer knew about his future son-in-law’s partying and sought to advise him to shape up.

Johnson announced on July 31 that he would take a leave of absence from the PGA Tour “to seek professional help for personal challenges.” However, sources told on Aug. 1 that the PGA Tour had actually suspended Johnson after he tested positive for cocaine. The report added that Johnson has failed three drug tests since 2009 – including one in 2012 that allegedly resulted in a suspension – and that he engaged in a “sexual indiscretion” with the wife of at least one fellow PGA Tour player.

Soon after, the PGA Tour released a statement denying that Johnson was under suspension. “With regard to media reports that Dustin Johnson has been suspended by the PGA Tour,” the statement read, “this is to clarify that Mr. Johnson has taken a voluntary leave of absence and is not under a suspension from the PGA Tour.” However, Eurosport notes that the PGA Tour also denied that Johnson was suspended in 2012, despite the fact that he did not compete for 11 straight weeks.

“He’s had drug problems for a while, and the PGA always tried to keep it on the low,” a golf insider told Fox411. “But because of his high-profile relationship, people figured it would come out sooner or later.”

Johnson and Gretzky began met in 2012 and got engaged in late 2013. Initially, the couple announced that they planned to get married in the fall of 2014, but Gretzky told Golf Digest that their respective busy schedules had forced them to push the wedding back.

Thus far, neither Wayne nor Paulina Gretzky has issued a public comment on Johnson’s behavior. However, the former hockey star purportedly expressed concern in his daughter’s personal life in the past; when Paulina Gretzky briefly deleted her Twitter account in 2011, several reports suggested that she did so due to her father’s concerns over its often-racy content.