With Schaub missing practice Sunday due to a sore elbow, Derek Carr worked with the Raiders' first team offense in his place, sfgate.com reports. "We'll see where (Schaub's) at tomorrow and kind of take that day-by-day," coach Dennis Allen noted Sunday. In three preseason games thus far, Schaub has completed 24-of-47 passes for 218 yards, with an interception, with questions about his arm strength having cropped up in the process. The report notes that the veteran QB is scheduled to talk to reporters after practice Monday, with NFL.com's Ian Rapoport suggesting that Schaub's elbow issue is believed to be a case of tendinitis, with no major structural damage in play.