The 2009–10 CONCACAF Champions League was the second edition of the CONCACAF Champions League under its current format, and overall the 45th edition of the premier football club competition organized by CONCACAF, the regional governing body of North America, Central America and the Caribbean. The tournament began on July 28, 2009 and ran through April 28, 2010. All four Mexican teams topped their groups and reached the semi-finals, with Pachuca winning the final against Cruz Azul with a 2–2 aggregate score, via the away goals rule. As winners, Pachuca qualified for the 2010 FIFA Club World Cup as the CONCACAF representative. Atlante are the defending champions, but failed to qualify and cannot defend titles.