The 30-year-old playmaker arrived at Ibrox for a sizeable £2.2 million fee in the summer of 2017 but he quickly failed to live up to the price-tag, and soon embodied everything that was wrong with Pedro Caixinha’s doomed spell as Gers manager.
After being released early from his contract by Rangers, he failed to kick a ball for Polish second division outfit GKS Tychy after a dispute over his wages, but ended a 16-month spell out of the game last week when he signed for Mexican side Correcaminos.
But Pena will be closely watched after president Miguel Mansur instructed fans to play their part in keeping the Mexico international on the straight and narrow.
Speaking via the Daily Record, the Correcaminos supremo said: “When he signed him, I was very clear with him and warned him we’d be watching him.
“He won’t relapse here because of the fans.
“Here in Ciudad Victoria, the people will look after him and protect him.
“I did a forum with the fans when he signed and told them that if any of them spotted him in a bar or drinking, they had to go straight to me immediately and tell me.
“Do you know how many fans have contacted me since then? None.
“He is committed to football and this club. He loves his family too and I believe he is more settled now than he’s ever been.
“Carlos is a leader in the dressing room and it’s a privilege to work with him.”
What do you think of Mansur’s rallying call, and does Pena still have what it takes to be a top player?
Let us know in the comments section below…