by Paul Cook - Things are hotting up with one round remaining of this year’s Heineken Cup group stages, after four teams booked their place in the Quarter-Finals last weekend. That leaves the final four spots to be played out this weekend with ten teams still a mathematical chance of progress. With six groups in total, it’s the group winners plus the two best placed runners-up across all the groups that go on to the Quarter-Finals and the possible permutations from the final round are endless. Saracens, Munster, Racing Metro 92, Toulouse, Leicester Tigers, Biarritz, Northampton Saints, Castres, Leinster and Montpellier are all still a shout of making it through, setting up a nail biting last weekend which could see many fans needing to keep their calculators handy. The French sides have continued the good form shown by the national team