The Redskins have exercised the fifth-year option on guard Brandon Scherff, Albert Breer of The MMQB tweets. The two-time Pro Bowler is now under contract through the 2019 season. 
The decision to extend Scherff for another season was a no-brainer for the Redskins. The former No. 5 pick in the 2015 draft has started in every one of his games over the last three seasons and has been rated as a top-tier lineman by the advanced metrics in each of the last two years. Last season, Scherff earned a career-best 83.2 overall score from Pro Football Focus, making him the eighth-highest ranked guard in the NFL. He placed ahead of many notables, including Ronald Leary, Richie Incognito, T.J. Lang, and Kelechi Osemele.
The fifth-year option is guaranteed for injury only, so the Redskins will be able to press the eject button before the additional year kicks in if Scherff’s performance suffers. The additional year for players taken in the top ten is equal to the transition tender at the player’s position during his fourth season. The transition tag for offensive lineman this year was $12.525MM, so that will be Scherff’s projected salary for ’19.