Question: Charlie Williams was traded for someone nicknamed as what?

Context paragraphs:
Charlie Williams (pitcher): Charles Prosek Williams (October 11, 1947 – January 27, 2015) was a Major League Baseball pitcher.  He is best known for being the player the New York Mets traded to the San Francisco Giants for Willie Mays.

Col. Bruce Hampton and the Aquarium Rescue Unit: Col. Bruce Hampton and the Aquarium Rescue Unit is an experimental rock group founded by Col. Bruce Hampton.  The band gained popularity in the Atlanta club scene in the early 1990s and went on to tour with the first H.O.R.D.E. Tour.  During the early years, the band was composed of Bruce Hampton, Oteil Burbridge, Jimmy Herring, Jeff Sipe, Matt Mundy, and Count M'Butu.  Jeff Mosier and Charlie Williams were members of the band during the early years, but left to pursue other endeavors.  Although the band was never commercially successful, their combination of bluegrass, rock, Latin, blues, jazz, funk, and impeccable chops became a template for future bands.

Charlie Williams (soccer): Charlie Williams was born and raised in Valletta, Malta on 15 February 1944.

Charlie Williams (British writer): Charlie Williams (born 1971) is an English writer who has published six novels and a number of shorter works.  Williams grew up in the town of Worcester on the borders of Western England, and was educated at Swansea University.

Willie Mays: Willie Howard Mays, Jr. (born May 6, 1931), nicknamed "The Say Hey Kid", is an American former Major League Baseball (MLB) center fielder who spent almost all of his 22-season career playing for the New York/San Francisco Giants, before finishing with the New York Mets.  He was elected to the Baseball Hall of Fame in 1979, only his first year of eligibility.

Charlie Williams (promoter): Charlie Williams (born January 5, Seoul, Korea ) is the founder of international promotions company Dragon Promotions, and is an Asian American entrepreneur involved in multiple sports and marketing industries.  As a CEO of multiple corporations, his core skills as a promoter, project manager, marketing guru and TV producer has brought him to the table of numerous industries and leaders.  He is heavily involved today in the tennis industry, NFL, billiards, and politics.

Shiver and Shake: Shiver and Shake was a British comic magazine published every Monday by IPC Magazines Ltd.  It ran from (issues dates) 10 March 1973 to 5 October 1974, when it merged with "Whoopee! ".  As in the tradition of British comics many names of strips were a play on popular television programmes and films of the time.  Similar to "Monster Fun" later, the theme of the strips were mainly horror (albeit of a comic nature).  Indeed Frankie Stein appeared in both comics.  Borrowing from the successful "Whizzer and Chips", it was two comics in one; "Shake" being a pull-out section from "Shiver".  The main star of "Shiver" was a ghost of the same name, whilst "Shake" was an elephant.  Both had their own strips in their respective sections ("The Duke's Spook" and "Shake"), "The Duke's Spook" changing to "Shiver" after its merger.  In 1973, the comic also featured a one page strip starring stand-up comedian Charlie Williams.  Other strips in "Shiver and Shake" included:

The Comedians (1971 TV series): The Comedians is a British television show of the 1970s (later reprised in the mid-1980s and early 1990s) produced by Johnnie Hamp of Granada Television.  The show gave a stage to nightclub and working men's club comedians of the era, including Russ Abbot, Lennie Bennett, Stan Boardman, Jim Bowen, Jimmy Bright, Duggie Brown, Mike Burton, Jimmy Jones, Dave Butler, Brian Carroll, Frank Carson, Mike Coyne, Jimmy Cricket, Colin Crompton, Pauline Daniels, Charlie Daze, Vince Earl, Steve Faye, Eddie Flanagan, Stu Francis, Ken Goodwin, Jackie Hamilton, Jerry Harris, George King, Bobby Knutt, Bernard Manning, Mike McCabe, Paul Melba, Mick Miller, Hal Nolan, Tom O'Connor, Tom Pepper, Bryn Phillips, Mike Reid, George Roper, Harry Scott, Sammy Thomas, Johnny Wager, Roy Walker, Charlie Williams, Lee Wilson and Lenny Windsor.

The Turbans: The Turbans were an African American doo-wop vocal group that formed in Philadelphia in 1953.  The original members were: Al Banks (lead tenor), Matthew Platt (second tenor), Charlie Williams (baritone), and Andrew "Chet" Jones (bass).  They came from Downtown Philadelphia (around Bainbridge and South Street).

Charlie Williams (motorcyclist): Charlie Williams (born 31 July 1950 in Kelsall, Cheshire) is a former Grand Prix motorcycle road racer.  His best season was in 1974 when he finished in tenth place in the 500cc world championship on a Yamaha motorcycle.  Williams was an eight-time winner at the Isle of Man TT races, although only three of those victories counted towards the world championship.  In 1980, he won the Formula II Class of the Formula TT world championship.

Supporting paragraphs: Charlie Williams (pitcher) Willie Mays
Answer: The Say Hey Kid