The Infield that Never Was - 2013 Phillies

Michael Young, Jimmy Rollins, Chase Utley, Ryan Howard 

If the season had been different this would have been the infield for a playoff caliber team.  Instead Chase Utley and Ryan Howard once again had stints on the DL.  The veteran quartet ended up playing 38 games together, which is actually a lot more then I would have guessed.

Sources
espn bottom line
baseball-ref.com