Article from before he signed,his problems were obviously there:
The 27-year-old Leon midfielder has been quoted in his homeland as being in negotiations with the Ibrox club, with manager Pedro Caixinha knowing him from his time as manager of Santos Laguna.
if
Rangers were to snap up the player, known as 'Gullit' in his homeland for his resemblance to Dutch legend Ruud, they'd be signing a player with an extremely colourful background.
He's never been far from the headlines in his native land, after spells with Pachuca, Leon and Deportivo Guadalajara.
The player angrily hit out at rumours he was enjoying his partying lifestyle too much last year.
He said: "They tell so many lies about me. I have just started to ignore all the things coming out.
"It's just pure gossip. They say I am a drunk and I chase woman.
"Personally, I don't care. It doesn't hurt me because I know they are lies.
"But the truth is that kind of talk is doing damage to my family. I have children and they read that. I know it's not true, but they don't."
And his former manager at Guadalajara, Matias Almeyda, said: "I learned to love Carlos when he was at the club.
"He's an excellent guy, an excellent player, but he obviously had some episodes.
"I tried my best to help him. I told him I would do it because I loved him.
I've seen many players like him who have ended up badly and I don't want that with Carlos.
"I don't want him to waste his best years of football by partying.
"His friends need to help him too. If they turn up with beer and wine, they are not helping him."
The owner of the club, Jorge Vergara, later revealed why they decided to sell Pena back to Leon last year.
He said: "We supported him as best we could, but unfortunately the only environment where he feels comfortable is at Leon.
"We offered him personal therapy, with a specialist in his problems.
"I personally employed an Australian man who had very good results with other people...but not with him.
"He has made many personal decisions in his life that continue to generate problems."
Earlier this year, Pena was initially arrested after a suspected hit and run incident. He spent 12 hours in custody before he was released without charge, after narrowly passing a breath test, according to reports.
He later said: "It was a scrape, not a car crash. The media always talk about me as a person and never about my football."
Pena was also embarrassed when his wife's best friend gave an interview on national television to complain about the player's alleged womanising,
which had been widely reported in the Central American media.
He was also the subject of a lawsuit earlier this year by a woman who claimed he had fathered a child and paid no maintenance since she was born three years ago.
However, his football ability appears not be be in question and he has won 19 caps for Mexico. He played in the last World Cup in Brazil.
