The 34-year old Scottish striker has been battling issues with his quadriceps during preseason after undergoing surgery on his right knee to address a tendinitis problem.
Miller has had to deal with various leg niggles during his Whitecaps spell, restricting him to 35 MLS appearances over one-and-a-half seasons, and it again looks as though he will struggle to be fit as the Whitecaps prepare for the March 8 first kick against the New York Red Bulls.
"The season's only two-and-a-half weeks away, so it's going to be a rush for him to be fully fit," Whitecaps head coach Carl Robinson told The Province from training this week.
"He's done a bit of technical training today, a bit of passing and moving and finishing at the end. Because of the extent of the injury, we're not pushing him too much.
"He's an important player for us but, having said that, he's missed all of pre-season. He's back into training but not full training, which obviously is a concern for me.
"I've got players in there who are fit and raring to go. I'm not going to risk someone who's 50-60 per cent fit on the first game of the season."
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