Complex sentence: In 2008, Marcum got off to a good start, going 5--4 with a 2.65 ERA and 86 strikeouts in 98 innings, but an injury, followed by a handful of weak starts sent him to Triple-A on August 23.
Split into simpler sentences: In 2008, Marcum got off to a good start, going 5--4 with a 2.65 ERA and 86 strikeouts in 98.2 Innings. But an injury followed by a handful of weak starts sent him to Triple-A on August 23.