Complex sentence: The knockout phase of the 2009--10 UEFA Champions League began on 16 February 2010 and concluded on 22 May 2010 with the final won by Internazionale against Bayern Munich 2--0 at the Santiago Bernabéu Stadium in Madrid.
Split into simpler sentences: The knockout phase of the 2009--10 UEFA Champions League began on 16 February 2010. It is scheduled to conclude on 22 May 2010 with the final between Bayern Munich and Internazionale at the Santiago Bernabéu Stadium in Madrid.