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Winston (bottom) throws a block last season.
Right tackle Eric Winston signed with the Cardinals on the first day of training camp. Less than a week later, he has taken Bobby Massie's spot on the first unit, according to the Cardinals' official blog.
It doesn't look like the end of Massie's time as a starter. It shows that the competition on the offensive line is open and anything could happen.
According to Fox News, guard Daryn Colledge missed time with a nerve injury in his lower right leg. It's hard to tell how much more time Colledge could miss. Paul Fanaika is trying to capitalize at the right guard position until Colledge comes back.
At left tackle, Levi Brown knows this will be an important camp. According to ArizonaSports.com, Brown needs to show he can be a starter to the coaching staff. Brown is coming back from a torn triceps injury that cost him all of last season. That will put pressure on him. So does having four years remaining on his $30 million deal.
The Arizona offensive line will be a battle to watch throughout training camp.