Follow live text commentary & BBC radio commentaries as Bordeaux Begles take on Leicester Tigers, Champions Toulouse play Ulster, Bristol Bears host Leinster.

Don’t miss live commentary of the Investec Champions Cup clash between Leinster and Clermont this Saturday, December 14th, from Aviva Stadium.

As the South African franchises prepare to launch their respective bids for Champions Cup glory, here's all you should know about rugby's greatest club competition.

First up a trip to Toulouse, the holders and most successful team in the competition’s history. Then a home clash with Bordeaux, nowhere near so storied but still the team that sits right behind Toulouse in the Top 14 this season having reached the decider last term.

If you were to list the last five English appearances in an Investec Champions Cup final you’d find Exeter there once and Saracens four times.

Ulster take on Toulouse today on the opening weekend of the Investec Champions Cup. Today's game begins at 3:15pm, with coverage being shown live on Premier Sports 1, with streaming available on the Premier Player. We will have full live updates from today's clash between Ulster and the reigning European Champions in our live blog below.