Our European Rugby Challenge Cup Focus this week is on French side Grenoble, who return to the competition after a one-season absence. What is their Challenge Cup record like? They have reached the knockout stages once in nine attempts. That came in 2015/16, when they topped Pool 5 after winning five of their six games and then squeezed past Connacht Rugby 33-32 in a dramatic quarter-final. However, they lost 30-6 at Harlequins in the semi-finals. https://twitter.com/FCGrugby/status/1009511638750384129 Who is on their coaching staff? Stéphane Glas, who played 30 Tests for France and was in the Bourgoin team at centre when they won the first Challenge Cup in 1997, and Dewald Senekal, the South African former Bayonne lock, are Grenoble's main coaches. Glas looks after the backs, while Senekal coaches the forwards. They are joined by former player Cyril Villain, who returned to the club in 2017 as defence coach after nine years as coach at SC Chambéry, and Jérôme Vernay (skills). Who are their principal new signings? Grenoble have reacted to their European and TOP 14 returns by going global with their recruitment, signing Australian utility backs Junior Rasolea and Ben Lucas, Samoa back-row forward Taiasina Tu'ifua, Tonga prop Halani Aulika, South African prop JC Janse van Rensburg and centre Raymond Rhule, and Georgia prop Davit Kubriashvili. They have also signed several Frenchmen, including goal-kicking Brive full-back Gaëtan Germain, who has amassed 121 points in only 15 European appearances for them and Racing 92. https://twitter.com/FCGrugby/status/1013728340845441024 Who are some of their key players? In addition to their new signings, Grenoble will have high hopes for wing Lucas Dupont, who has played European Cup and Challenge Cup rugby for Montpellier and Grenoble. Grenoble will also be looking to New Zealander Lolagi Visinia, who has featured for the All Blacks' sevens team, to provide pace among their backs.