Leonard's enforced break has been a frustrating one and mirrors last year, when he tore a hamstring in round one, also against the Highlanders, and was out for eight weeks.
"It's been a long six weeks with plenty of running,'' he said. "I've tried to look at it positively and see it as an opportunity to get fitter. I've been Richard Kahui's tackle bag while the boys were in South Africa, which was exciting,'' he deadpanned.
"It's obviously bad luck for Tawera ... but [my return] is good timing. We'll have two good halfbacks stripping up again this weekend.
"I've been doing plenty of contact so I'm happy with where my mindset is in terms of that area.''
Leonard was impressed with the way his tired teammates withstood a torrid first half from the Highlanders in Hamilton last weekend to grind out a 19-7 victory, but is expecting improvements for the Blues, who are performing, like coach Sir John Kirwan promised, with the trajectory of a roller coaster.
"We missed a few opportunities in that second half to score a few points and put the game out of reach but they had a few chances themselves,'' Leonard said of the Highlanders match. ``There were some desperate tackles on the line to deny them. Obviously the effort and desire was there so we just have to make sure the skill level matches that.
"Chiefs v Blues games are always evenly contested and pretty physical. I remember for a few years with the Chiefs we languished at the bottom of the table and the Blues were riding high but we managed to go up there and beat them a few times and I guess that has taught us a lesson.''