When the Green Bay Packers practice for the first time in training camp on Monday, they will be down a couple key players. Right tackle Zach Tom and tight end Tucker Kraft, who suffered torn pectorals before the start of OTAs, are not expected to be on the field for Day 1 on Ray Nitschke Field. Plus, both players are incredibly important to the Packers' fortunes, so they figure to proceed with caution. Tom is one of the best right tackles in the NFL, proving his talent again and again last season in battles against the NFL's best pass rushers.