It's been less than a month since Williams was diagnosed with cancer.
This surgery will take place 10 days after he was diagnosed with Papillary Type 2 cancer.
"He’s a battler all the way," Seahawks coach Pete Carroll said. "He’s been up against it, too. He’s fought some difficult fights, and he’s fighting another one - maybe the fight of a young man’s life.
"We’ll be there with him and hope to pull him through.”
“Although disappointing, I am a fighter and will handle this," Williams said in a written statement. "I am going to focus on my health and fighting this battle with a return to football as my ultimate goal. Thank you for your thoughts and support. Go Hawks!"
Williams was re-signed by the Seahawks on April 1 on a restructured contract.
“Jesse is an extraordinarily tough individual who has overcome a great deal in his life and we will support him in any way possible," Seahawks general manager John Schneider said. "He is in our thoughts and prayers.”
According to the NFL's transaction wire, the Seahawks re-signed defensive tackle
Tukuafu was signed to the Seahawks in 2014 after the 49ers released him. He played in nine games for Seattle.
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