Among the ways that Ravens TE Ed Dickson is preparing for his second NFL season: pushing a blocking sled 10 yards 20 times. Such is life when you're slated to play Steelers OLB James Harrison twice a season; blocking becomes a primary concern, even when the games are months away and the NFL isn't conducting any official business. But make no mistake: many players continue to work on their craft, and Dickson, who caught 11-152-1 while showing promise as a rookie reserve, is no different. Something head coach John Harbaugh said early in Dickson's career resonates today. "You're a world-class athlete, you have to treat yourself (as) one," Dickson recalled him saying, with the clear message that a player was responsible for taking care of his business. So Dickson has worked out throughout this offseason, catching passes from QB Joe Flacco in Arizona earlier in the spring and also training at the University of Oregon. "I'm trying to go up to that next level," Dickson said.