Head coach Pete Carroll of the Seattle Seahawks looks on during the game against the San Diego Chargers at CenturyLink Field on August 15, 2014 in Seattle, Washington. The Seahawks defeated the Chargers 41-14. (Photo by Otto Greule Jr/Getty Images)
"The Seahawks will forfeit its first two days of on-field double practices during its 2015 mandatory mini-camp for veteran players and will be permitted a single 2 ½-hour on-field practice session on the final day of its mini-camp," league spokesman Randall Liu said.
"Seahawks players will be paid for the cancelled practice sessions. The violation was for permitting the club’s players to engage in excessive levels of on-field physical contact during the team’s 2014 mandatory mini-camp for veteran players."
Chris Mortensen of ESPN.com was the first to report the penalties and said that head coach Pete Carroll and the team will be fined in upwards of $300,000 for the infractions.
A Seahawks spokesman said the team would defer to the league in discussing the issue.
The Seahawks also forfeited two OTAs in 2012 after similar violations of the league's Collective Bargaining Agreement. The team was found guilty of violating the prohibition live contact during drills during one of their OTAs.
The Seahawks have claimed center Patrick Lewis off waivers from the Jacksonville Jaguars. To make room on the roster, the team released linebacker Marcus Dowtin.
Lewis was an undrafted free agent out of Texas A&M in 2013. He has played for Cleveland, Green Bay and Jacksonville.