One Penrith player punched a teammate's car and another was barred by his partner from travelling interstate in two previously unreported incidents from the club's troubled season.

While the details of the sex-tape scandal that has cast a shadow over the Panthers are well known, the Herald can reveal two other unsavoury incidents that have added to the unrest at the foot of the mountains.

The Panthers had hopes of challenging for the title at the start of the year but now face missing the finals altogether should they lose to defending premiers the Roosters on Saturday.

Their best chance of victory is if Roosters pin-up Luke Keary misses the game for the birth of his first baby, something the five-eighth says he will do should his partner go into labour.