Datsyuk (shoulder) will undergo an MRI but said he expects to miss at least a week, Helene St. James of the Detroit Free Press reports. Datsyuk suffered a shoulder injury during Monday's preseason opener against Pittsburgh, in which he recorded a goal and an assist. The 36-year-old is yet to undergo an MRI but indicated that he likely won't skate for at least a week. More will be known following the MRI, but for now it appears as though he'll miss a good chunk of the preseason.