The Seattle Seahawks were on a mission to shut down Ezekiel Elliot on Sunday ... because the team was totally pissed Elliot bet Eric Dickerson he'd gash the Seahawks defense for 200 yards.

Dickerson told TMZ Sports about the bet earlier this month ... telling us the Cowboys stud promised a 200 yard rushing game against the Seahawks, or he owed Dickerson a jersey.

Zeke didn't rush for 200 yards (although he did roll off 97 on 22 carries) and when asked about the bet after the game, Seahawks defensive star Frank Clark admitted the team played with chippy shoulders.

"Oh yeah, we heard about that."

In case you were wondering, that's code for "We must break you."