Ryōsuke Oguma (小熊凌祐, born August 11, 1990, in Moroyama, Saitama, Saitama Prefecture) is a Japanese former professional baseball pitcher who is currently a staff for Chunichi Dragons of the Nippon Professional Baseball. He has played in NPB for the Dragons.
Source: “Ryōsuke Oguma”, English Wikipedia (CC BY-SA 4.0), excerpt
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