Complex sentence: Also in 2008, Sell was one of two coaches for the USTA Summer Collegiate team, which serves as an elite training program for the top American collegiate tennis players and she got her start in coaching in 2007 as an assistant at Harvard University.
Split into simpler sentences: Also in 2008, Sell was one of two coaches for the USTA Summer Collegiate team, which serves as an elite training program for the top American collegiate tennis players. She got her start in coaching in 2007 as an assistant at Harvard University.