Rapid Reaction: Nationals 5, Cubs 4

Here's a quick look at the Cubs' extra-inning loss on Monday in Washington.

How it happened: The dreaded leadoff walk came back to haunt the Cubs in a big way. Jayson Werth started the bottom of the 10th inning by reaching on a walk. He was sacrificed to second on Livan Hernandez ‘s bunt, stole third then scored on Carlos Marmol’s wild pitch. Pitching in an emergency start for Ryan Dempster (back pain), Casey Coleman was solid, going 5 1/3 innings and giving up three runs. The Cubs’ overworked bullpen may have given up that lead, but the team had other opportunities to win this win without going to extras – most notably Werth threw Carlos Pena out at the plate in the sixth inning. Pena would have been the game’s winning run.

What it means: The Cubs started their last road trip of the first half on a sour note. If the team has any chance to climb in the standings, this set of seven games with Washington and Pittsburgh would seem like an ideal opportunity.

Outside the box: Carlos Pena’s triple in the second inning was his first since July 10, 2009. He has 20 triples in his career.

Next: Ramon Ortiz, a 38-year-old journey man, will make his Cubs debut in place of Carlos Zambrano. He’ll face off against former first-round pick Ross Detwiler (0-0).