BOSTON (CBS) — When Tom Brady speaks (or tweets), people listen.

The Patriots’ quarterback fired off a couple of tweets during Thursday night’s Titans-Jaguars game, suggesting he did not enjoy seeing so many penalties called. Coincidentally or not, NFL head of officiating Al Riveron held a conference call with 17 referees on Saturday night to discuss the frequency of penalty calls, according to ESPN’s Kevin Seifert.

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“The effort could decrease the rate of offensive holding flags beginning with Sunday afternoon’s games,” Seifert wrote.

The league announced during the summer that holding would become a point of emphasis for the officials this season, and sure enough, holding calls have been made with a tremendous frequency through the first two weeks of the season. Seifert noted that holding penalties have increased by 66 percent over the first two weeks compared to last season.

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Brady was asked about his tweets on Friday, and he made it clear — somewhat — that his tweets were not intended to criticize the referees and officials on the field.

“I’m very pro-ref,” Brady insisted.

In that sense, Brady’s issue might have been larger, suggesting that the point of emphasis was making for a choppy viewing product. TV announcers Joe Buck and Troy Aikman helped that message reach even more people when they read and discussed Brady’s tweet during Thursday’s broadcast.

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“I mean, he is league royalty,” Aikman said Thursday night. “And when he makes a statement like that, that should get somebody’s attention. I agree, this is ridiculous — again, this week.”