The highly emotional message from Severin Lüthi to Roger Federer · tennisnet.com
Severin Luthi reveals how Roger Federer welcomed him to Swiss DC team in 2005
Severin Luthi | Overview | ATP Tour | Tennis
Davis Cup on X: "Happy Birthday to Severin Luthi, who captained Switzerland to the #DavisCup title for the first time in its history in 2014! https://t.co/M2DJ9nlZUP" / X
Roger Federer Brings His Star Power Back to the Davis Cup - The New York Times
Severin Luthi awarded as Swiss Coach of the Year in Zurich
Severin Lüthi: Guiding Roger Federer's Tennis Triumphs - A Comprehensive Look - SarkariResult | SarkariResult