After trading their picks at 62 and 113 to the Rangers, the Caps move up the line to #57 and use the pick to take Swiss defenseman Jonas Siegenthaler.
Per HockeyProspectus, Siegenthaler is described as "strong and responsible in his own end, but without much in the way of an offensive game."
Here's a little more on Siegenthaler from NHL.com:
• Siegenthaler spent the majority of the 2014-15 season with Zurich in the Swiss League under former Stanley Cup-winning coach Marc Crawford. A physical, two-way defenseman, Siegenthaler led the Lions with 39 penalty minutes.