Percy Harvin to have hip surgery

Seattle Seahawks wide receiver Percy Harvin announced via Twitter on Tuesday night that he will undergo hip surgery.

The Seahawks announced the surgery will take place Thursday. It's uncertain how long Harvin will be sidelined, although NFL Network reported early estimations are Harvin will be out three to four months, meaning he would be sidelined until at least November.

Harvin was in New York on Tuesday to receive a second opinion on his injured hip from Dr. Bryan Kelly. He was seeking more information for soreness in his hip, in the area of his labrum, that popped up just before the Seahawks opened training camp. Seahawks coach Pete Carroll had declined to say which hip was bothering Harvin.

Before seeing Kelly, Harvin saw a first doctor who believed there was a tear in Harvin's hip, according to a source.

Harvin started training camp on the physically unable to perform list and likely will remain there until the team has a better idea of his recovery time. If Harvin starts the season on the PUP list he must miss the first six weeks and would have to return to practice by the end of Week 11 to avoid missing the entire season.

The loss of Harvin is significant, but not a huge setback for a team that relies on the legs of Marshawn Lynch and timely passing by Russell Wilson to drive its offense.

"Obviously we would be more dangerous with Percy but with or without him I still feel like we have enough playmakers to succeed this year," Seahawks wide receiver Golden Tate told ESPN's Josina Anderson.

Harvin finished his last season in Minnesota on injured reserve with an ankle injury that he suffered Nov. 4 in Seattle.

He signed a six-year, $67 million extension with the Seahawks in the offseason, with $25 million of that guaranteed. Seattle traded a first-round and a seventh-round pick in the 2013 draft and a third-round pick in the 2014 draft to the Vikings for Harvin.

Carroll also said Tuesday that wide receiver Sidney Rice is in Switzerland to have treatment on his knee. Carroll said the procedure didn't involve surgery.

Carroll went on to say he did not expect Rice to miss any games in the preseason or regular season. Rice finished last season with 50 catches for 748 yards and seven touchdowns.

Information from ESPN NFL Insider Adam Schefter, ESPN's Ed Werder and The Associated Press was used in this report.