[4] Knowing Boyer might become a potential star, the general manager of the Yankees, George Weiss contacted the general manager of the Kansas City Athletics, Parke Carroll, whom the Yankees had a friendly relationship with, to sign Boyer with the final intention of eventually acquiring him (by trade or sale of his contract).

He became the Yankees' regular third baseman in 1960, beating out three others (including Gil McDougald, who had announced in spring training that this, his tenth season in the majors, would be his last) for the starting job.

With two runners on base and the Yankees trailing 3–1 in the second inning, manager Casey Stengel, never confident in Boyer's hitting, replaced him with pinch-hitter Dale Long, who flied out to right fielder Roberto Clemente.

The Yankees didn't score in the inning and lost 6–4, ultimately losing the Series in Game 7 on Bill Mazeroski's home run off Ralph Terry in the bottom of the ninth.

Boyer batted only .224 during the regular season, but more than made up for it with his defense in an infield that also featured the double play duo of Tony Kubek at shortstop and Bobby Richardson at second base.

Dodger ace Sandy Koufax won the first and fourth games, striking out a series record 15 batters in the opener.

During each of Ralph Houk's first three seasons as Yankee manager (1961–1963), Boyer led all American League (AL) third basemen in putouts, assists, and double plays, finishing ahead of rival Brooks Robinson — yet Robinson, not Boyer, won the Gold Glove Award each year.

[5] In the 7th inning of that seventh game, Ken homered off Yankee pitcher Steve Hamilton and exchanged nods with Clete.

After the 1964 Series, Houk unceremoniously fired Berra (in mid-season the management, dissatisfied with Berra's work, made up their mind to fire him at the end of the season no matter what the Yankees did) and replaced him with Johnny Keane, who had managed the Cardinals to the World Series victory over the Yankees.

In spring training of 1965 Boyer was involved in a fight in a Fort Lauderdale bar with a male model, Jerome Modzelewski.

[6] During the season, he did bat .251 with a career-tying 18 home runs, but the Yankees slumped to sixth place, their lowest finish in 40 years.

Boyer left Major League Baseball and resurfaced in Japan, where he played professionally for the Taiyō Whales, from 1972 to 1975.

Afterwards, Boyer returned to the Major Leagues as a third-base coach with the Yankees and the Oakland Athletics, mostly with former teammate Billy Martin as manager.

"I know Brooks Robinson got all the Gold Gloves, and he's every bit deserving of the Hall of Fame, but Clete was as good as anyone who ever played the game."

Kubek, also a lifelong friend of Boyer, thought he was as good at playing third base as Graig Nettles, Brooks Robinson, and Mike Schmidt.

The restaurant features sandwiches and hamburgers named after various Yankees' immortals such as: "Yogi's Special meatball sub", "the Mickey Mantle Cheeseburger Deluxe", "the Reggie Veggie Burger", "the Bobby Richardson Cheeseburger", "the Roger Maris Hamburger Deluxe", and "the Whitey Ford Blue Cheese Burger".