Munster cannot afford anymore slip ups in Pool 2 as they prepare to make the trip across the Irish Sea to face Gloucester on Friday night.
The Irish province have two wins to their name in the European Champions Cup this season but have also been forced to settle for a draw and a loss in what is a competitive group.
With Castres and Exeter Chiefs snapping at their heels, Munster must avoid defeat at Kingsholm against a Gloucester side at the bottom of the pile.
This certainly will not be an easy one for the visitors but, with their Ireland international stars in the ranks, they should have enough quality to overcome the Cherry & Whites.
Racing 92 are one of the real contenders for the European Champions Cup this season and will fancy their chances when they make the trip to Ulster on Saturday.
The Top 14 outfit, along with Saracens, are one of just two teams that have a perfect record after four rounds of the competition this season.
With a powerful pack and the likes of Scotland fly-half Finn Russell and Irish star Simon Zebo in the backline, it is easy to see why Racing have already secured wins over Ulster, Leicester Tigers (twice) and Scarlets in their group.
Ulster still harbour hopes of making the knockout stage so they will not be easy opposition, but Racing have the influential players that can help them maintain that perfect record.
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