All quiet with Peterson, Sherman -- for now

GLENDALE, Ariz. -- It took him a few days but Seattle cornerback Richard Sherman echoed the sentiments of Arizona’s Patrick Peterson.

Their twitter feud, Sherman said Monday on 710 ESPN Seattle, is all good-natured ribbing.

“It's all fun,” Sherman told the radio station per Seahawks reporter Terry Blount. “We're just trying to see who's the most clever. We're friends. We've known each other since the (NFL) combine (in 2011). We've worked out together and he's a great dude.”

Sherman has been quick to refute and respond when Peterson tweeted about stats, salaries or on-field responsibility. After signing his extension in May, Sherman was able to use his higher salary as a defense mechanism. That changed on Tuesday when Peterson signed a five-year, $70 million extension with $48 million guaranteed. Arizona added $10,000 per season to Peterson’s annual average, pushing him slightly above Sherman’s $14 million average.

In their latest war of words, Sherman took out the ace in his pocket, tweeting a picture of his Super Bowl ring.

Despite what he says, I don’t think Sherman thinks it’s really all fun and games with Peterson. There is clearly a chip on Sherman’s shoulder that won’t be going away anytime soon. He is out to prove he didn’t need to be a first-round pick to be among the best players in the league. Sherman was drafted in the fifth round and worked his way up to being considered one of the top cornerbacks.

But he relies too often on his stats to make comparisons with Peterson, without publicly stating the difference between the schemes in Arizona and Seattle. Sherman covers the left side of the field at all times. Peterson chases the opponent’s top receiver across the field.

During his news conference Wednesday announcing Peterson’s extension, Peterson said he thought Sherman was “salty” at times.

In an interview with CBSSports.com, Peterson said he and Sherman haven’t talked much, if at all, since the feud began this summer.

“We stopped texting each other," Peterson said. “There are no hard feelings here at all. At the end of the day, some people take things the wrong way. I don't have any problem with him. He might have a different opinion. In my opinion, I think it's a healthy, clean competition between two of the best corners in the league.”

Peterson should be the least of Sherman’s worries. For as long as they are in the league, the two will be compared, regardless of how much better Sherman thinks he is. This is a modern day Michael Irvin-Jerry Rice rivalry. It will be a few years before we will be able to say who is better -- if they have separated enough by then. Sherman has other players -- such as San Francisco’s Michael Crabtree -- who he has a bigger beef with than Peterson.

Twitter shots were fired all offseason, but I don’t think they are done.