Complex sentence: John Milton Hoberman, a historian and Germanic studies professor at the University of Texas at Austin, has acknowledged that disparities in certain athletic performances do exist but has asserted that there is no evidence to confirm the existence of "black athletic superiority".
Split into simpler sentences: John Milton Hoberman, a historian and Germanic studies professor at the University of Texas at Austin, has acknowledged that disparities in certain athletic performances exist. He has asserted that there is no evidence to confirm the existence of "black athletic superiority".