But with Northampton a bonus-point victory away from a potential qualification for the next stage of the Heineken and currently lying fifth in the Aviva Premiership table, the 25-year-old front rower insists no one in the Saints squad should be looking beyond the next game.
"I've known for quite a while that this is the place I want to be," said Mercey, who joined Northampton from Saracens in 2010. "We've got a really good squad and I'm looking forward to this weekend and the rest of the season.
"However, we are aware we have to play in the here and now we can't always talk about playing for the future. We have ambitions to push on this season, we have a bit more experience having been in those positions previously and it should be exciting.
"We can't look to the future too much because we could come unstuck during the rest of the season. Northampton are a strong club and you would always expect them to have a quality squad.
"We need to focus on what is happening from a playing perspective during the rest of the season - it's someone else's job to deal with what goes on off the pitch."
While Brian Mujati and Soane Tonga'uiha have become synonymous with Northampton's trademark, powerful pack, failure at the final hurdle in 2011 Heineken Cup and three consecutive Aviva Premiership semi-finals has the Saints marked down as the nearly men of English rugby.
However Mercey is convinced Saints' young squad has the potential to win trophies, particularly with the likes of Corbisiero and fellow prop Alex Waller - who also signed a new contract this week - in the side.
"It's a really good place to be, our squad has a good core of young players and the last two years have put us in a good position to push forward," said the former England Saxons player.
"You only have to look at our forwards coach Dorian West, who has produced pretty consistent packs here and for the England set-up, which tells you something. In the next couple of years this is the place I want to be as we have got the right group to move forward.
"Alex is a quality player and has played the most first team games of anyone last season. He's one of the younger guys in the squad but I'm looking forward to playing with him in the future.
"Every team in the Aviva Prem will have a dip during the course of the season, but it's about when that dip is and how long it lasts - we want to put ourselves in a good position to get into the top four at the end of the season."
Next up for Northampton is a trip to Glasgow in the Heineken Cup, with only a bonus-point victory enough to keep the Saints in the hunt for glory in Europe's premier competition.
And after a frustrating calf injury that kept him out for more than three months before Christmas, Mercey is hopeful of helping Northampton back to Europe's top table this season - and maybe reigniting his England ambitions at the same time.
"Unfortunately I tore my soleus, which is at the bottom of the calf, in my first appearance of the season and that hampered me in the early and mid part of the season," said the former Blackheath player.
"But I'm fit now and I've managed to squeeze my way back into the squad and I've enjoyed the game time I've had recently - anything beats lying on the physio table so I'm not going to complain.
"I think anyone who is happy with where they are has stopped progressing in their career. I still have ambitions to play for England but my focus has to be on playing well for my club first."
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