Tim Cahill might have landed himself in hot water after revealing a possible breach of Football Federation Australia's strict anti-sports corruption protocols by using his mobile phone during a match.

The FFA confirmed they will launch an investigation into whether Cahill was sending text messages in the middle of Melbourne City's 1-1 draw with Sydney FC last week after the marquee said during an interview he had contacted his family during the half-time interval.

Speaking with Fox Sports on Friday night, Cahill ramped up his criticism of fans booing and verbally abusing players and said that he used his mobile phone to text family members during half-time at ANZ Stadium asking them to leave early due to the jeers and heckles of spectators.

"I think the hardest thing for me against Sydney FC, sitting on the bench for 80 minutes, was when your kids are sitting behind you and your nephew and niece," Cahill told Fox Sports. "I think that hit me harder personally because it was verbal abuse and direct. I went into half-time and texted my missus telling her to go home because I had a four-year-old sitting in the crowd."