Complex sentence: Klitschko, a 4--1 underdog, dominated the early going with many harder punches and stunning Lewis in the second round with two hard rights, leaving a cut under on Lennox's left eye.
Split into simpler sentences: Klitschko, a 4--1 underdog, dominated the early going with many harder punches. He stunned Lewis in the second round with two hard rights, leaving a cut under on Lennox's left eye.