Olsen announced his retirement from the NFL on Sunday, Bob Condotta of The Seattle Times reports.

Olsen (foot) was a full participant at Friday's practice, John Boyle of the Seahawks' official site reports.

Olsen (foot) is inactive for Sunday's game against the 49ers.

Olsen (foot) is officially listed as questionable for Sunday's game against the 49ers, but head coach Pete Carroll relayed Friday that the tight end won't play in the regular-season finale, Brady Henderson of ESPN.com reports.

Olsen (foot) has been labeled questionable for Sunday's game against the 49ers, Curtis Crabtree of Sports Radio 950 KJR Seattle reports.

Olsen (foot) didn't participate in Thursday's practice, John Boyle of the Seahawks' official site reports.

Olsen (foot) didn't participate in Wednesday's practice, John Boyle of the Seahawks' official site reports.

Olsen was targeted twice and caught a 15-yard pass in Sunday's 20-9 win over the Rams.

The Seahawks activated Olsen (foot) from injured reserve Saturday, John Boyle of the Seahawks' official site reports.

Coach Pete Carroll said Monday that Olsen (foot) "is returning this week," Curtis Crabtree of Sports Radio 950 KJR Seattle reports.