Murphy, who was among the try-scorers in last Saturday's Guinness Premiership Final defeat of Gloucester is looking to forward to an intriguing battle with a player he knows well.
"He's a good friend of mine," says 25-year-old Murphy. "We played at Munster together for a few years. We're about the same age so we played against each other many times coming up through the levels. We've competed against each other in club games and school games and we know each other pretty well to be honest. I'm sure it'll be interesting for both of us."
Reddan, like Murphy, has been in impressive form this year, and the Wasps No.9 has received praise from his Tigers counterpart.
"I thought he was very good when he was at Munster. He's a fantastic player - he snipes a lot and he's very quick. That's a great part of his game and I'm not surprised at all about how well he's done."
Murphy stepped into the breach last weekend after injury ruled out Harry Ellis, and the Irishman did what he has done all season in putting in another dominant display.
"It was obviously a big deal to play in that game. Harry's a big-name, he's a great player and he's a big loss to us, but I'm part of the squad, I've played a lot of games this year and it was a great opportunity for me. I suppose I was a little bit apprehensive going into the game but I was more looking forward to it. I knew Pat backed me but it's great to hear it publicly. It does give me a boost when he says it in front of everyone.
Murphy hopes that the squad ethic that has driven Tigers' success this season can see them complete an historic treble, although the Munsterman is fully aware of the size of the challenge ahead.
"There's a great spirit here. The coaching staff are remarkable and scrum-half coach Jamie Hamilton's been a big help. We've got a big squad and everyone contributes equally, but we know this is a big week and we'll have to get our heads right. There's a bit of pressure on us and it's going to be a very tough game. Wasps are an excellent side so we'll just have to see how it goes."