Browns G Jason Pinkston (undisclosed) is not practicing.

Browns G Jason Pinkston sustained a concussion in Sunday's Week 16 loss to the Jets.

Pinkston appeared in just three games this season as he battled a high-ankle sprain.

Browns activated RG Jason Pinkston (ankle) from injured reserve/designated to return.

Pinkston suffered a high-ankle sprain in the Browns' second preseason game, but was given a 4-6 week timetable to return. He should be 100 percent. Pinkston could immediately supplant Shawn Lauvao at right guard. Lauvao has graded out as a bottom-12 guard in Pro Football Focus' ratings.

Browns placed RG Jason Pinkston (ankle) on injured reserve/designated to return.

The move clears a spot for Billy Cundiff on the active roster. Pinkson suffered a high-ankle sprain in the Browns' second preseason game and won't be eligible to return until Week 9. Oniel Cousins will start at right guard in his absence.

Browns RG Jason Pinkston (high-ankle sprain) will be sidelined 4-6 weeks.

Pinkston's initial recovery timetable was set at 2-4 weeks, but it appears he could be in danger of missing the first month of the regular season. Seventh-rounder Garrett Gilkey will start in his place for the time being, but the Browns may opt to scour the waiver-wire once teams start trimming rosters.

Browns coach Rob Chudzinski acknowledged RG Jason Pinkston's high right ankle sprain will "probably" extend into the regular season.

Once one of the NFL's better-off teams at guard, Cleveland is now perilously thin with Pinkston and Shawn Lauvauo (ankle surgery) both on the shelf. The Browns may begin searching the free agent market, with only raw late-round rookie Garrett Gilkey left as the best option to play opposite LG John Greco.

Browns RG Jason Pinkston (high-ankle sprain) will miss the rest of the preseason, and is questionable for Week 1.

X-rays revealed no ligament damage, so things could have been worse. Pinkston's timeline is officially 2-4 weeks. With Week 1 just 23 days away, that makes Pinkston very dicey for the opener, but the Browns have incentive to rush him with seventh-rounder Garrett Gilkey the starter in his absence. We'd guess Pinkston plays against the Dolphins.

Browns RG Jason Pinkston suffered a "severe" right ankle injury in Thursday's preseason game.

Jason Pinkston will be the Browns' starting right guard this season.

Shawn Lauvao's training-camp ankle surgery locks in Pinkston. A brawling former left tackle at Pitt, Pinkston was really coming on as a 2012 starter before suffering a blood clot in his lung, which ended his season. The Browns have an impressive O-Line on paper, which from left to right reads LT Joe Thomas, LG John Greco, C Alex Mack, RG Pinkston, and RT Mitchell Schwartz.

ESPN Cleveland expects Shawn Lauvao and Jason Pinkston to compete at right guard.

Browns LG Jason Pinkston (blood clot in lung) is participating in OTAs.

Pinkston was on his way to a breakout season prior to landing on IR in Week 7. He's back as the starting left guard for a unit our Evan Silva ranks sixth in the league.

Browns LG Jason Pinkston (blood clot in lung) tweeted on Monday that he has been 100 percent medically cleared.

However, Pinkston is not expected to participate in this week's voluntary pre-draft minicamp. Pro Football Focus graded Pinkston out as a top-25 guard prior to him being placed on injured reserve in Week 7. If he keeps progressing well, the 25-year-old should be ready for OTAs.

Browns LG Jason Pinkston tweeted Wednesday that the blood clot in his right leg is now gone.

A pulmonary embolism ended Pinkston's 2012 season after six starts. The Browns still don't know his availability for 2013, but it sounds like his recovery is progressing. A promising brawler in the trenches, Pinkston is still only 25 years old. Cleveland does have a rock-solid left guard backup in John Greco.

The Browns won't be sure of LG Jason Pinkston's (blood clot in lung) 2013 status for "a while."

The word comes from new coach Rob Chudzinski. Pinkston was previously expected to have a "normal" offseason, and that should still end up the case. Pinkston is the favorite to keep his left guard job in 2013.

Browns LG Jason Pinkston (blood clot in lung, injured reserve) is expected to return next season.

Pinkston hasn't been cleared for football activities, but is expected to have a normal offseason and should return as a starter with the Browns. A fifth-round pick in 2011, Pinkston will make $500,000 in the third year of his rookie deal and is under contract through the 2014 season.

Browns LG Jason Pinkston (blood clot in lung, injured reserve) has been cleared to begin weightlifting and conditioning.

Pinkston was enjoying a fine season before going down in Week 6, but his career is still in the balance. Head coach Pat Shurmur was uncertain of Pinkston's long-term outlook, "It's hard for me to tell what the long range is for him." John Greco has filled in admirably at left guard for Cleveland. Pinkston will enter the third year of his four-year rookie deal in 2013.

Browns placed LG Jason Pinkston on injured reserve with a blood clot in his lung, ending Pinkston's season.

It's a tough break for Pinkston, who was off to a terrific start this season after struggling in his rookie year. The Browns do have an effective run-blocking replacement in John Greco, but they may not be able to afford to lose any more offensive line starters without experiencing a dramatic drop-off. Pinkston is under contract for $550K in 2013 and should return as a starter.

Browns LG Jason Pinkston (illness) is not expected to return this season.

Pinkston was hospitalized Thursday with a blood clot in his lung and is dealing with a potentially career-threatening injury, according to the Cleveland Plain Dealer. The Browns have yet to officially announce whether he'll be placed on injured reserve. John Greco will start in his place in Week 7 against the Colts.

Browns LG Jason Pinkston has been diagnosed with a blood clot and is out indefinitely.

He's currently in the hospital and will be replaced by John Greco against the Colts. Greco is a formidable run blocker, so the drop-off won't be a back breaker for Trent Richardson's Week 7 outlook. Pinkston, a second-year player, has graded out as a top-25 overall guard through six games, per Pro Football Focus.

Browns LT Joe Thomas believes second-year LG Jason Pinkston is capable of becoming a "great player."

Pinkston struggled while converting from college tackle to NFL guard as a rookie without an offseason, but he is a brawling mauler on the interior with a big upside. "I think he's gonna be one of the top guards in the league," Thomas said. "He's made a big jump already from where he was last year, and he's gonna be a great player on this line for a lot of years." The Browns' promising, power-blocking line is one big plus for rookie back Trent Richardson.