IRVING, Texas — Dallas Cowboys rookie receiver Dez Bryant says he's done talking about being asked by Miami Dolphins general manager Jeff Ireland in a pre-draft interview if his mother was ever a prostitute.

After his first workout with the Cowboys during a rookie minicamp Friday, Bryant repeatedly said he didn't want to talk about his interview with Ireland and the controversy that has followed.

"I don't want to talk about it. I just want to talk about the Cowboys and what I'm doing. I put that in the past," Bryant said. "I'm just going to move on, I really don't even want to speak on it anymore. I feel fine, things are great. I'm just looking ahead now."

Bryant's on-field debut with the Cowboys came days after Ireland apologized publicly, the NFL players union raised concerns about discrimination and degradation, and Dolphins owner Stephen Ross said he would look into the matter personally.

Meanwhile, Ross gave Ireland a vote of confidence Friday and said he considers "the matter closed."

In a four-paragraph statement, the Dolphins owner said he spoke with several people, both directly and indirectly involved with the situation, and concluded the team will need to make some changes to its interview practices.

He stopped short, however, of saying he considered any punishment for Ireland.

"Jeff Ireland is a man of great capability and integrity and he is well deserving of my continued confidence," Ross said.

Ross did not specify exactly how the interview processes going forward would change.

"We are going to take a hard look at our interview practices and we will make improvements that will allow us to get the important information we need about players in whom we are making a major investment, but without being insensitive," Ross said.

Another twist came Friday when SI.com, citing unnamed sources, reported that Ireland asked Bryant if his mother was a prostitute as a follow-up to other answers provided by the 21-year-old receiver.

The SI.com report cited an alleged exchange in which Bryant was asked what his father did for a living when the receiver was growing up, and he responded that his dad was a pimp. When Bryant was then asked what his mother did and answered that she worked for his dad, Ireland asked if she was a prostitute.

Asked about that report in the locker room Friday after practice, Bryant responded, "That was a lie."

"I really don't want to speak to it anymore," Bryant continued, his words trailing off as he finished that statement.

Ireland called Bryant to apologize and made that apology public only after Yahoo! Sports reported this week that the Dolphins GM had posed the question several weeks ago during a predraft interview.

"My job is to find out as much information as possible about a player that I'm considering drafting," Ireland said in a statement this week. "Sometimes that leads to asking in-depth questions. Having said that, I talked to Dez Bryant and told him I used poor judgment in one of the questions I asked him. I certainly meant no disrespect and apologized to him."

The Cowboys traded up three spots to get Bryant with the 24th overall pick in last week's NFL draft. Bryant was among the Cowboys' six draft picks who joined 26 other rookie free agents and first-year players for the start of a weekend minicamp.

Surrounded by reporters and cameras at his locker after the first workout, Bryant was asked if he was bothered by the controversy marring the start of his NFL career.

"It did bother me, but it doesn't bother me anymore," Bryant said. "I'm fine, my family's fine, we're great. We faced a lot of criticism but you know things are great now and we moved ahead. I'm happy, my family's happy. That's what all matters."