Michael George Sadek (May 30, 1946 – January 20, 2021) was an American baseball player who was a catcher in Major League Baseball (MLB). Originally drafted by the Minnesota Twins in 1969, he spent his entire major league career with the San Francisco Giants. He was a backup throughout his eight-year major league career, which spanned the years 1973 and 1975 through 1981. Sadek's nickname was "The Sheik" which was coined by Giants teammate Craig Robinson who, upon seeing the name Mohammed Ahmed Sadek, declared to the catcher, "Hey, you’re a sheik." During his time in MLB, he was known as one of the most funny jokesters.
In the 1996 film The Fan, Sadek served as Robert De Niro's body double in scenes where DeNiro's character was throwing a baseball.
Sadek died on January 20, 2021, in San Andreas, California, at the age of 74. He was survived by his son, Mike Jr., along with Mike's wife Melanie and their three children, Mike Sr.'s grandchildren. A daughter, Nicole, had died at age 25 in a parachuting accident.