Penrith centre Michael Jennings has been fined and stood down from Friday night's NRL clash against Wests Tigers after turning up to training under the influence of alcohol.

Jennings was issued with a final warning after his second alcohol-related indiscretion of the season, having been fined $10,000 for drinking while injured in June.

The 23-year-old will turn out for the Windsor Wolves in the NSW Cup against Central Coast on Saturday.

After being sent home from training on Thursday, Jennings was told at a disciplinary hearing on Friday that future indiscretions would result in sterner action.

"Michael has also accepted a fine of an undisclosed amount and, in the strongest possible terms, Michael has been told that behaviour of this nature will not be tolerated ever again and he is on his final warning," the Panthers said in a statement.

"Michael expressed extreme remorse and embarrassment at his actions and promised this will be the last time he will be involved in a matter such as this."

Winger David Simmons is expected to replace Jennings at fullback against the Tigers with veteran Shane Elford coming into the side on the wing.

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