There is a new No. 1 in this week's edition of MLS Power Rankings, with Columbus' stumble against Toronto clearing the path for the youthful Philadelphia Union to become kings of the league. At the other end, Thierry Henry's Montreal lost twice in a week to fall 10 places down the order.

1. Philadelphia Union
Previous ranking: 2

Next MLS match: Saturday at Toronto, 7:30 p.m. ET
A scoreless draw at Cincinnati in midweek was underwhelming, but the Union rebounded to rain on the parade of Gonzalo Higuain's MLS debut in a dominant 3-0 win as the heavens opened in Philadelphia, providing a deluge of precipitation and goals.