George Mullin played the first eleven years and change of his career with the Detroit Tigers, and while he is not one of the most known hurlers in Major League history, he was a massive cog in the machine that was the Detroit Tigers in the late 1900s. 

While George Mullin was not exactly known for his control (he led the AL in Walks four times) he was a workhorse of a power pitcher, exceeding 20 wins in a season six times, including the 1909 season where he led the American League in that category.  Mullin still holds the franchise record for Innings Pitched both all-time and in a single season.

Helping the Tigers win three Pennants (1907-09), Mullin and Detroit may not have won any of those World Series, but he went 3-3 overall with an ERA of 1.86, showing that he certainly did his part.  He was also an excellent batter and was one of the best Detroit ever had.  He batted .261 with 372 Hits for the Tigers.  Overall, he went 209-179 with 1,380 Strikeouts.