Anthony Bosch, the founder and former proprietor of the infamous anti-aging clinic Biogenesis, says Alex Rodriguez was meticulous in his quest to exploit the benefits of performance-enhancing substances for an edge -- and ultimately in seeking to become the sole member of the 800 home run club.

Speaking in an interview with the CBS News program "60 Minutes" to air Sunday night, Bosch said he personally injected Rodriguez with PEDs because the New York Yankees third baseman, whose suspension was reduced Saturday from 211 games to 162, was "scared of needles."

"So at times, he would ask me to inject," Bosch said in the interview, according to a publicity release.

A partial transcript of the interview and text messages that "describe a secretive Rodriguez and an accommodating Bosch" have also been published by the New York Daily News.

"Try to use service elevators. Careful. Tons of eyes," Rodriguez told Bosch in a text message in June 2012 in Atlanta, the day before he hit his 23rd career grand slam to tie Lou Gehrig's record.

The "60 Minutes" segment also revealed Rodriguez spent $12,000 a month in doing business with Bosch, according to the newspaper.

"Alex cared. Alex wanted to know," Bosch said, according to the Daily News. "He would study the product. He would study the substances. He would study the dosages, because he wanted to achieve all his human performance or in this case, sports performance, objectives. And the most important one was the 800 home run club."

Rodriguez also texted Bosch during a spring training game in April 2012 in which he had three RBIs.

"Really good. Explosive," Rodriguez messaged to Bosch, according to the Daily News.

"Go with same protocol," Bosch replied.

Rodriguez, after the reduced suspension was announced Saturday, reiterated his claim that he has not taken any PEDs in his time with the Yankees.