Toby Faletau has expressed his shock and delight at being able to play alongside former Wales teammate Shane Williams.
The 36-year-old was called into the British and Irish Lions squad due to a number of injuries.
"He's just such a legend I guess and it's good to have him back," BBC Sport quotes Faletau as saying.
"I was just shocked to be honest, but it's great to be able to take the field with him again."
Williams will start for the Lions against ACT Brumbies in Canberra on Tuesday.