Complex sentence: Waddell enjoyed one successful season, helping the Browns compete in the greatest AL pennant race ever, but further issues with drinking and marital strife with third wife, Madge Maguire, led to his being released in 1910.
Split into simpler sentences: Waddell enjoyed one successful season, helping the Browns compete in the greatest AL pennant race ever. However, further issues with drinking and marital strife with third wife, Madge Maguire, led to his being released in 1910.