One memorable instance of an NHL reverse sweep in playoff history occurred in 2010 when the Philadelphia Flyers came back from a 3-0 series deficit to defeat the Boston Bruins in the Eastern Conference Semifinals. Another notable reverse sweep took place in 2014 when the Los Angeles Kings overcame a 3-0 series deficit to beat the San Jose Sharks in the Western Conference First Round. These instances are rare and showcase the resilience and determination of the teams involved.