Speedster WR Markus Wheaton impressing coaching staff, catching on quick as possible replacement for departed Mike Wallace

When the Pittsburgh Steelers let WR Mike Wallace walk, they knew there was a void to fill in the offense.

Wallace stretched the field with his speed and made room for fellow receivers Antonio Brown and Emmanuel Sanders rook to work underneath.

Wallace is gone, but the philosophy stays the same and rookie Markus Wheaton is quickly showing he cou…

Source: Yardbarker: Pittsburgh Steelers