Anderson wants to make an impact at Manchester United next season after injuries continue to hinder his career in England.
Brazilian Anderson arrived at Old Trafford from Porto in 2007 and made a promising start to his time with United, winning the English Premier League title and the UEFA Champions League during his first season at the club.
But the 24-year-old suffered ruptured knee ligaments in 2010, forcing him out of action for six months.
And although he returned to the team toward the end of a title winning season in 2010/11, knee trouble again limited his involvement last term, as he made just 14 starts.
Reports have linked Anderson with a move away from the club, but the player is determined to remain and prove his worth to manager Alex Ferguson.
“For me, this season is very important,” he told the Manchester Evening News.
“I know I have to be very focused on my football. I’ll still have a laugh and a joke with my team-mates, but I know I must be really focused.
“I want to show what I can do this season, produce my best and help the team. I need to prove what I can do. I know the boss and my team-mates believe in me, I’ve just had bad luck.
“I want to improve as much as I can and help the team win trophies. I feel good. I had a nice holiday and I’ve had no problem with my leg.
“I started last season with no problems but then I started to feel my knee a bit. It’s just one of those things, some players have injuries and others don’t.”
United’s first match of the Premier League season is away to Everton on August 20.