Alou Diarra says he is determined to fight for his West Ham United place in the Premier League season.
The France international spent a successful spell on loan at Ligue 1 club Rennes last term but has returned to the Boleyn Ground in the best of form ready to make the most of his second opportunity.
He has made just six appearances for the Hammers since arriving in east London from Marseille for Â£2million in 2012.
"I want to fight this season with West Ham," he told West Ham TV. "I'll give 100 per cent in training and I'll wait for my chance.
"I want to give my best for West Ham and we'll see. I'm ready to play in the Premier League now.
"Pre-season has gone well. We work hard every day, and we've only lost one game so it has been a good start for us."
Diarra blamed missing out on a full pre-season for not playing a full part in last term's impressive 10th placed finish.
"It is a very different pre-season for me," the Frenchman added. "It's a big chance for a player to be fit and for me it is much better being involved from the start this year. I missed it last season, so it was hard to come back.
"That was difficult, but now I have this chance to start with the squad, so that is good for me.
"I feel good at the moment. I can run, and move, but it's not 100 per cent yet. There are three weeks left to get ready for the Premier League and I want to fight this season with West Ham."
The Scotland international was linked with Championship counterparts Nottingham Forest earlier this week.
Mackie is under contract with Rangers for another two years, and the club is thought to have accepted a Â£1.5m offer from Forest.
QPR boss Harry Redknapp is on the lookout for a new striker, although his attempts to lure Gary Hooper from Celtic appear to have failed with Norwich now expected to sign the Englishman.
An R's statement read: "Jamie Mackie has today (Thursday) submitted a transfer request, which the club have reluctantly accepted.
"The 27-year-old has informed the club of his desire to leave, having found first team opportunities limited at Loftus Road in the last six months.
"As previously stated, no player will leave QPR unless the club's valuation is met.
"The club will be making no further comment at this time."
Mackie has made 94 competitive appearances for the Championship club, scoring 18 times since moving from Plymouth for Â£145,000 in May 2010.