The Uruguay international was handed the punishment yesterday after an independent panel decided the incident involving Chelsea's Branislav Ivanovic warranted additional punishment above the statutory three-game suspension for violent conduct.
Liverpool are awaiting the detailed written report before deciding whether to appeal - they have until midday tomorrow to do so.
But fears have already been raised that Suarez, who served a seven-match ban for biting PSV Eindhoven midfielder Otman Bakkal in November 2010 immediately before his move from Ajax to Anfield, could quit England in the summer as a result of the ban.
"I consider myself a friend of Luis. He is being treated differently, I don't know if it's because he's Uruguayan or because he's had a previous episode like this...," Reina told Spanish radio station Cadena Cope.
"He knows full well that what he did was wrong but a 10-game ban seems to me absurd, out of proportion and unfair.
"It seems that the people making the decisions have got it in for Luis a little bit. That's the way I see it.
"I am not justifying what he did but the punishment is very disproportionate.
"He knows he was in the wrong, he knows he has made a mistake but the treatment is completely out of place.
"Those who know Luis know that he is the complete opposite (off the pitch), he is a magnificent person and great team-mate.
"But because of the way he plays, he is aggressive and very competitive, he plays like a street player and sometimes the way he is gets him into trouble."
Reina also described sections of the English media of being sensationalist and "very very very very hypocritical".
Asked if he felt there was xenophobia in England, Reina said: "There is hypocrisy, I don't know if it's so much xenophobia, but a different yardstick is used.
"Some players are treated differently to others.
The ban, pending any successful appeal, means Suarez will not be available for Liverpool until September.
But having accepted he was wrong to bite Ivanovic there is a suggestion Suarez is unhappy by what he perceives harsh treatment and that may have a bearing on his future.
Liverpool managing director Ian Ayre has stressed they have no intention of selling the 26-year-old, who signed a new four-year contract last summer, but that may not be enough to persuade the striker to remain in England - especially with clubs like Bayern Munich and Juventus interested in him.
"Right now he is a Liverpool player," said Reina.
"He is having a bad time of it and so is his family. He is certainly good enough to fit into any team in the world."