What's trending in the NFL: Four teams fill coaching voids; where will RG III land?

Polian: Kelly 'the right fit' for 49ers (1:31)

Bill Polian joins Russillo & Kanell to break down the 49ers hiring Chip Kelly to be their head coach and what effect Kelly will have on Colin Kaepernick. (1:31)

Here are the top stories from Thursday:

The 49ers on Thursday hired former Eagles coach Chip Kelly. Paul Gutierrez lists five things Kelly needs to fix to have success, and Kevin Seifert says it could be good news for quarterback Colin Kaepernick's future.

Bucs turning to offensive coordinator Dirk Koetter as coach, a league source told ESPN's Adam Schefter.

From Matt Bowen's story on how NFL players play through pain: "There will be a line out the door in game day training rooms this weekend for pain injections. I took one of those shots, a Toradol injection, for every game during the final three years of my career. Drop your pants and wait for the needle. It only stings for a couple of seconds. I'm sure Toradol has long-term (and negative) effects, just like the overuse of ibuprofen, but when you need that shot to get through three hours on game day, it is the final (and sometimes best) option."

Source: Doug Pederson expected to resume Andy Reid coaching tree in Philly (by Adam Schefter and Phil Sheridan)

NFL Nation reporters took a look at which teams might have interest in Redskins quarterback Robert Griffin III.

Ben McAdoo hired as coach of New York Giants (by Dan Graziano)

Mel Kiper Jr. unveiled his first NFL mock draft for 2016Insider, featuring the Titans taking a defensive end with the No. 1 pick.

From Adam Schefter's story on a potential rivalry between Panthers quarterback Cam Newton and Seahawks quarterback Russell Wilson: "Few have talked about Newton and Wilson in the same breath as Brady and Manning. But Newton is expected to win this season's MVP and Wilson was this season's second-half MVP. They are the NFL's new leading men, at the top of their games just as Brady and Manning are getting closer to relinquishing their throne."

Police say Patriots defensive end Chandler Jones 'desperately' sought help (by ESPN.com news services)

Best stat

From ESPN Stats & Information research: The Patriots, who play the Chiefs -- winners of 11 games in a row -- on Saturday, have faced two other teams on 10+ game win streaks in the playoffs in the Bill Belichick era. Both teams lost at home to the Patriots.

Best tweet