A knee injury has ended Australian defensive tackle Jesse Williams's rookie NFL season with the Seattle Seahawks.
The Seahawks made the shock announcement on Monday.
Williams, the 191cm, 147kg Brisbane-raised man mountain known as "Tha Monstar" had been battling knees issues during training camp, which forced the Seahawks to place him on the injured reserve list.
That rules him out of playing the 2013/14 season, which starts against the Carolina Panthers on September 8.
"Going to get right, have to come back better," Williams announced on Twitter.
By placing Williams on the injured reserve list the Seahawks do not waste one of the team's valuable roster spots, but can re-evaluate his knees next year.
Despite his strength, huge body and back-to-back national championships with the University of Alabama, Williams was not picked up by the Seahawks until the fifth round of April's NFL Draft.
Williams' knee troubles, which involved surgery in 2011 and an another arthroscopic procedure in January, scared many clubs from drafting him earlier.
On Sunday another rookie Australian, punter Brad Wing, was cut by the Philadelphia Eagles after losing a pre-season battle for the punting job with NFL veteran Donnie Jones.
Wing is looking for another team.
