After last week’s Heineken Champions Cup Pool Draw in Lausanne, we take an in-depth look at Pool 1, boasting defending champions Leinster Rugby and a combined 11 European Cup titles. Bath Rugby Ground: The Recreation Ground, Bath, England. European Cup record: In a Pool full of European Cup pedigree, Bath Rugby have the least amount of titles in Europe’s elite club competition, having won the tournament once – in 1998. Last season: Bath Rugby were in a competitive Pool 5 in 2017/18, picking up four victories from six matches, but it was only good enough for third place behind eventual semi-finalists Scarlets and RC Toulon. They qualified for this season's Heineken Champions Cup after a sixth-place finish in the Aviva Premiership – ahead of Challenge Cup finalists Gloucester Rugby on points difference. Director of rugby: Former All Black lock Todd Blackadder joined Bath Rugby as director of rugby in 2016 after spells at Mitre 10 Cup side Tasman and Super Rugby team Crusaders. Key players: Bath have added Argentina international Lucas Noguera Paz and Exeter Chiefs scrum-half Will Chudley to their squad, along with British and Irish Lions centre Jamie Roberts, who has joined from Harlequins. They join the likes of Wales No. 8 Taulupe Faletau, England full-back Anthony Watson and Wales fly-half Rhys Priestland at The Recreation Ground. https://twitter.com/ChampionsCup/status/1011878045840494592 Leinster Rugby Ground: RDS Arena, Dublin, Ireland. European Cup record: Leinster lifted the trophy for a fourth time in 2018, joining Toulouse as the most successful club in European rugby, having also won the tournament in 2009, 2011 and 2012. Last season: The Irish province completed an unbeaten European campaign in 2017/18 as they marched past defending champions Saracens (30-19) in the quarter-finals, before seeing off Scarlets (38-16) in the semi-finals and Racing 92 (15-12) in a nail-biting Bilbao final. They also became the first side to win the European Cup and the Guinness PRO14 in the same season, after beating Scarlets 40-32 in the PRO14 final at the Aviva Stadium. Head coach: Leo Cullen captained the province to their first three European Cup victories, before retiring in 2014 to become forwards coach. He took over as head coach in 2015 and remains the only person to have won the European Cup as a player and a coach. Key players: The Irish province can field a host of Irish internationals, including fly-half Johnny Sexton, centre Robbie Henshaw, prop Tadhg Furlong and lock James Ryan, who is yet to lose a competitive match for Leinster. 28-year-old wing Joe Tomane has joined Leinster from fellow Champions Cup side Montpellier and is the only new signing so far. https://twitter.com/leinsterrugby/status/1009466054899322880 Toulouse Ground: Stade Ernest-Waldon, Toulouse, France. European Cup record: Toulouse, alongside Leinster, are the most successful team in the European Cup, having won the competition on four occasions in 1996, 2003, 2005 and 2010. They were also runners-up in 2004 and 2008. Last season: Toulouse finished second with 14 points in Challenge Cup Pool 2 in 2017/18 behind eventual winners Cardiff Blues, but did not qualify for the quarter-finals as one of the three best runners-up. The French side got back into the Champions Cup after finishing third in last season's TOP 14, behind Montpellier and last season's Champions Cup finalists, Racing 92. Director of rugby: Fabien Pelous won the European Cup three times as a player and will be hoping to repeat the feat of Pool 1 counterpart Leo Cullen in winning Europe’s elite club competition as a player and a coach. Key players: Toulouse will be hoping for big performances in the Champions Cup from Scotland lock Richie Gray, France utility back Yoann Huget and former All Black prop Charles Faumuina. Their close-season signings include Newcastle Falcons centre Maxime Mermoz, former All Black back-row forward Jerome Kaino and Bordeaux-Bègles lock Pierre Gayraud. https://twitter.com/ChampionsCup/status/1012232933132984321 Wasps Ground: Ricoh Arena, Coventry, England. European Cup record: Wasps have won the European Cup twice, in 2004 and 2007, with victories over Toulouse (27-20) and Leicester Tigers (25-9) in the respective finals. Last season: Wasps finished second with 17 points in a thrilling Champions Cup Pool 1 that saw three teams in with a chance of reaching the last eight on the final matchday. They qualified for this season's Heineken Champions Cup after finishing third in last season's Aviva Premiership - before being beaten 57-33 by Saracens in a play-off semi-final. Director of rugby: Former Wales and British and Irish Lions prop Dai Young joined Wasps as director of rugby in 2011 after eight years as head coach of Cardiff Blues, whom he guided to the European Cup semi-finals in 2009. Key players: Wasps have a wealth of international talent, including England No.8 Nathan Hughes and back Elliot Daly, plus South Africa full-back Willie le Roux. They are joined this season by former All Black fly-half Lima Sopoaga, as well as England prop Kieran Brookes and flanker Brad Shields. The fixtures for the new season will be announced around two weeks after the announcement of the last fixture list from the European professional domestic leagues.