West Ham goalkeeper Jussi Jaaskelainen admits he wants to repay Sam Allardyce for giving him the chance to play regular Premier League football again.
Jaaskelainen, 37, agreed to join the newly-promoted Hammers when his contract at relegated Bolton Wanderers expired during the summer.
The ex-Finland international made over 500 appearances for the Trotters after arriving from VPS Vassa in 1997.
But he found himself relegated to the bench last season after losing his place to Adam Bogdan in the New Year.
And Allardyce, who bossed Jaaskelainen at the Reebok Stadium, quickly moved to sign the experienced keeper to replace England international Robert Green as his No.1.
Jaaskelainen has been magnificent as the Hammers have kept three clean sheets in their opening four Premier League matches - and he has no intention of letting his standards slip.
"I try to work hard throughout the week to make sure I am ready for the game on Saturday," he told West Ham's official website.
"It helps that I have played in the Premier League before and I already know Sam (Allardyce) and his backroom staff.
"I really like the way they look after their players and hopefully I can repay them by keeping my performance levels at the same heights they have been so far this season.
"As a goalkeeper it is all about consistency."
On West Ham's start, he added: "You can see we are continuing to build together as a team and to have kept three clean sheets in four games is obviously a very good start."