SANTA CLARA — The 49ers on Sunday learned one of the drawbacks of having perhaps the most talented roster in the league: Every other team is eager to see which players you leave exposed.
Five players who spent training camp in Santa Clara were snapped up by other squads, including two rookies, cornerback Marcus Cooper and tight end MarQueis Gray, the 49ers had hoped to re-sign to their practice squad after waiving them Saturday.
Gray was signed to the Browns' active roster; the Chiefs signed Cooper to their 53-man squad. Kansas City also added receiver Chad Hall, who was on the cusp of making the 49ers' roster this year. Hall and Cooper join two other ex-49ers, quarterback Alex Smith and receiver A.J. Jenkins, in Kansas City.
In perhaps the biggest concern for the 49ers, quarterback Scott Tolzien, who was part coach, part backup the last two seasons with San Francisco, was added to Green Bay's practice squad. The Packers begin the season in San Francisco on Sunday.
Green Bay is likely to debrief Tolzien on his old team, just as the 49ers did with former Rams safety Craig Dahl when they signed him as a free agent in March. Dahl's admission that he spilled information about St. Louis' defense drew angry words from former Rams teammates this offseason but a shoulder shrug from Rams coach Jeff Fisher.
"First off, anytime a player that's involved in the system changes addresses, there's always going to be some sort of debriefing," Fisher said. "That always happens, so that's not unusual."