Mari arrived at Arsenal on loan in January from Brazilian club Flamengo. This followed his loan spell at Deportivo La Coruna from Manchester City last season was followed by a summer move to Flamengo, which, given the Brazilian league runs April to December, meant the defender had no time off for 18 months.
“I played one year and a half continuously, more or less 60 games. So for me it was a little bit hard when I went on holiday and then I came back a little bit not fit really.
“With the other guys and staff we did really well and I think now I am really fit to play a lot of games."
He added: “I don't want to look back, I want to look forward. Now I am in a really good club and I want to continue here for a lot of years."