Beckham is expected to complete a move to PSG in the near future.
Menez insists the midfielder will be welcomed with ‘open arms’.
The France international told L’Equipe: “It is good for us and for the club.
“He would be another great player in our group. He will be there to help us and we will help him too. We will make him feel at ease and welcome him with open arms.
“Will he be in competition with me? I don’t see it that way. I am used to competition and I am not scared by anyone.
“He is a great player and a great person. We have respect for everything that he has done and for what he is.
“We are a young group and his experience could make the difference during the second part of the season.”