Bud Collins, the most prominent tennis journalist of all-time, died Friday at the age of 86.

Collins was best known for his work at the Boston Globe and for his tennis TV coverage for CBS and NBC Sports.

Former colleagues and friends remembered Collins on Twitter Friday.

Sports columnist Bob Ryan: "Am totally saddened: Bud Collins had died. All-time #1 tennis buff, yes, but so much more. Journalistic GIANT! Great, great guy. I owe him."

Former NFL QB Bernie Kosar: "PRAYERS for Bud Collins who passed Today!!A fantastic Guy who announced & is in Tennis Hall of Fame!!GreatPerson!!"

Sports journalist J.A. Adande: "Thanks for everything you did, Bud Collins"

Sports journalist Rachel Nichols: "News crushing. He was so smart, funny, generous - being on the tennis beat in the Era of Bud remains a highlight of my career."

Sports journalist Hannah Storm: "I loved Bud Collins. A legend...and a gift to all of us and the sport of tennis."

Sports media critic Richard Deitsch: "Every U.S. tennis journalist owes a huge debt to Bud Collins. Rest in peace."

Sports columnist Steve Rushin: "I covered one Wimbledon. Bud Collins was Wimbledon. But he treated me like an equal."

The facebook page "Bud Collins and The Bud Collins History of Tennis book" posted the above recently.

Here is a link to that page