When the Oakland Raiders traded for Pittsburgh Steelers superstar wide receiver Antonio Brown this past offseason, expectations were sky-high for both Brown and the franchise as a whole.

As we know now, the Raiders-Antonio Brown experiment turned out to be a complete failure. The four-time first-team All-Pro was hindered by both injuries and questionable decisions off of the field (and some on it) and was eventually released by the team in early-September.

The AB situation didn't turn out well. His career in silver and black ended with zero catches in zero games played. But, no one takes the mishap worse than Raiders General Manager Mike Mayock.

“I put that on me,” Mayock told Vic Tafur of The Athletic Friday. “My anticipation was that he was coming off a situation in Pittsburgh where he wants to prove everybody wrong, and he wants to ride into the Hall of Fame. That he was going to come in with Jon Gruden and Derek Carr and our offense and lead the way. . . .I really thought we were going to get the best out of Antonio Brown, and we didn’t.

Mayock and the Raiders' front office were a big part of why Brown's career in Oakland ended so soon. After playing one game for the New England Patriots, Brown is now out of the league. The Raiders took a big swing last offseason and it turned out to be a big miss.

“We weren’t able to get anything out of him. So, at the end of the day, in hindsight, we lost a third-round pick and a fifth-round pick, and I can’t tell you how much pain that causes me,” Mayock said.