Delisted Saint Paddy McCartin has revealed he cheated on pre-season concussion tests to boost his chances of returning to the field later in the year.

The former No. 1 pick mutually agreed to depart St Kilda on Monday to focus on his health after a suffering series of concussions throughout his 35-game career.

He has not played since the 2019 pre-season when he copped his most recent head knock and eighth overall.

McCartin said he deliberately underperformed when undergoing baseline tests carried out at every club before the season.

โ€œI think some of the stuff that we do earlier in the season, baseline testing and these computer things, you can bludge your way through it if you want to,โ€ he told SEN.

โ€œItโ€™s your baseline, so itโ€™s what you are at the start of the season when youโ€™re fine.

โ€œAnd Iโ€™ve done this before ... because Iโ€™ve had so many concussions, especially early in my career (so) Iโ€™m sort of worried about missing games because I was worried about what people think about me and all that kind of crap.

โ€œIโ€™ve done the testing worse on purpose, so that if I do my baseline (testing) again Iโ€™m starting from a worse spot than I would before.โ€

Asked if he thinks other players would deliberately underperform, McCartin declared: โ€œI would say so.

โ€œIf I was doing it, then probably other people would too. Maybe I was the only one, but probably not.โ€

He added that players are better educated of how to deal with concussion nowadays.

โ€œItโ€™s just this weird concept that people want to push themselves past concussion,โ€ he said.

โ€œItโ€™s not a stigma but itโ€™s something thatโ€™s been around forever ... itโ€™s just this reputation that it has around it that โ€˜oh well, if you get hit in the head just get up and keep goingโ€™.

โ€œI think a lot of that is changing but thereโ€™s still some of it around.

โ€œThe AFL has done a good job but I think but I think definitely thereโ€™s guys that have probably played when theyโ€™re still struggling a bit.โ€