[1][4] Díaz appeared in only two games for the Red Sox, being struck out by Dennis Martínez in his only at-bat, which occurred that September 17.

[5] On March 30, 1978, Díaz was traded along with Ted Cox, Mike Paxton and Rick Wise to the Cleveland Indians for Dennis Eckersley and Fred Kendall.

[4] In 1980, he hit for a .227 average in 76 games but, provided solid defense, committing only 4 errors in 356 total chances, while serving as backup catcher behind Hassey.

[15] The moniker was a whimsical reference to the Whiz Kids Phillies team that won the National League pennant in 1950.

In a game against the New York Mets on April 13, 1983, Díaz performed a feat that has only been accomplished by 11 other players in the history of Major League Baseball.

[19] The Phillies won 12 out of the final 14 games of the 1983 season to win the National League Eastern Division title.

[28] During his absence, his replacement, Ozzie Virgil hit above the .300 mark, relegating Díaz to the backup catcher's role upon his return.

[30] On June 27, 1986, Díaz was part of an unusual occurrence when San Francisco Giants second baseman, Robby Thompson, became the first player in major league history to be caught stealing four times in one game.

[36] Díaz was the Reds catcher on June 6, 1988, when pitcher Tom Browning almost threw a no-hitter against the San Diego Padres.

In mid-June, a shoulder injury put him on the disabled list and then in September, Díaz had to undergo arthroscopic surgery on his left knee, which ended his season.

[38] He shared catching duties with Jeff Reed in 1989 but, in July Díaz had to undergo arthroscopic surgery on his left knee for a second time, which ended his season.

[1] Díaz played exclusively for the Leones del Caracas team in the Venezuelan Winter League (1972–1990), forming a fiery offensive combo along with slugger Tony Armas.

On January 6, 1973, he caught for minor league pitcher Urbano Lugo, who threw a no-hitter as the Leones del Caracas defeated the Tiburones de La Guaira, 6–0.

Thirteen years later, on January 24, 1986, Díaz was the catcher for another no-hitter in a 4–0 Caracas's victory over La Guaira.

On November 23, 1990, Díaz was killed, aged 37, when a satellite dish he was trying to install on the roof of his Caracas home fell on him and crushed his neck and head.