Beltway Links: Machado, Feldman, Haren, Knorr

The Orioles' playoff hopes are hanging by a thread after taking a four-game sweep in Tampa Bay but the greater concern to the team is the status of Manny Machado.  In the seventh inning of Monday's 5-4 loss, Machado was running to first on an infield hit and suffered an ugly-looking left knee injury that caused him to be stretchered off the field.  Machado will undergo an MRI in Baltimore tomorrow to determine the extent of the damage.  If that wasn't enough bad news for the O's, Alexi Casilla is being examined for concussion symptoms after colliding with Nick Markakis on a fly ball.

Here are some items out of Baltimore and Washington…

• The Orioles should make a point to re-sign Scott Feldman this offseason, CSNBaltimore.com's Rich Dubroff opines.  Feldman has pitched well since joining the O's and at a price of around two years/$17MM (originally cited by MLBTR's Steve Adams in his Free Agent Profile of Feldman), it's a good value for a team that has a lot of question marks in the rotation heading into 2014.
• Dan Haren doesn't figure he'll return to the Nationals next season and he's considered retirement, but the veteran righty tells MLB.com's Bill Ladson that he wants to keep pitching in 2014.  "Retirement has crossed my mind a few times this year, but with the way the year has gone — and the ups and downs — I feel I have something left that could help a team win. I want to give it at least another year and go from there," Haren said.  Haren has a 4.87 ERA over 30 games (29 starts) with Washington this season but he has a 3.57 ERA over his last 15 outings since returning from a DL stint.  He said he'd prefer to pitch for a west coast team to be closer to his family.
• Randy Knorr, the Nationals' bench coach and top internal candidate to replace Davey Johnson as manager next season, is profiled by Adam Kilgore of the Washington Post.