London Irish back Ciaran Hearn is looking forward to taking on Premiership giants Exeter when the two teams clash at the Madejski Stadium.
Sunday's fixture is a must-win for the Chiefs after back-to-back losses while for the Exiles they want a victory to push them up the table.
And the Canada international thinks his team needs to show a clinical edge if they are to triumph over Exeter in the Premiership fixture.
"It's about making the right calls at the right time, and taking advantage of our opportunities when they arrive," he told the club's website.
"You might only get three or four opportunities to score at this level, and it is important to take full advantage of those opportunities when they arise. We must help out our 10 and outside backs, and when we see those opportunities we need to communicate with them in order to execute our attacks."
Exeter are second in the standings and boast such talents as Thomas Waldrom, Gareth Steenson and Julian Salvi, with Hearn aware of their threats.
"They are a great side and they are playing really well at the moment, despite losing their last two fixtures," he said.
"They have had a few injuries lately as well as players away on international duty so that won't have helped them, but they will still undoubtedly be a tough team to go up against.
"Exeter like to play a fun style of rugby and they like to move the ball around, so it's not going to be easy. They have a number of players with key attributes and we will have to be fully prepared and fix our mistakes from last week.
"Ultimately, we need to know our individual roles, and if we do that we can be a match for any team on our day."
Hearn recently signed a new contract at London Irish after impressing since his arrival after the World Cup. And he admits the move to England has been a great one.
"It's good to play games week in, week out against some of the very best players in the world," said Hearn.
"That's what you relish as an athlete, to play against the best in the world and always challenge yourself every week.
"There are a great bunch of guys here at the club, and they have welcomed me with open arms – it's good to have another Canadian guy here too which helps.
"Everyone gets along really well, and everyone wants to play for one another which is exactly what you want."