Complex sentence: He moved back into the senior game with Elgin City in 2007, where he became captain before moving for a season to Dumbarton before returning to Elgin in the summer of 2010.
Split into simpler sentences: He moved back into the senior game with Elgin City in 2007, where he became captain, before moving for a season to Dumbarton. He returned to Elgin in the summer of 2010.