Minnesota Vikings center Joe Berger had the best season of his 10-year career in 2015. He was particularly effective as a run-blocker, as he led the way for running back Adrian Peterson to win the NFL's rushing title.

Pro Football Focus (PFF) named Berger the league's best run-blocker of the season.

Via PFF on Twitter:

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PFF's 2015 John Hannah Award, presented to this season's best run blocker, goes to @Vikings C Joe Berger: https://t.co/QkPLc7QOYM

— Pro Football Focus (@PFF) January 14, 2016

Berger was a sixth-round draft pick in 2005 and bounced around between a few teams early in his career. He has been with the Vikings since 2011, spending most of his time as a reserve. However, Berger was forced into the starting lineup when John Sullivan was lost to a back injury during the preseason. As a result, 2015 marked the first season in which the 33-year-old veteran started all 16 games.

The Vikings fielded the fourth most productive rushing attack in the NFL (138.2 yards per game), spearheaded by Peterson's league-leading 1,485 yards. Berger's efforts at center went a long way towards making this happen.