Johnson, a left-handed hitter, is hitting .248/.402/.471 with 17 home runs for the Buffalo Bisons. He hasn't had the best July, hitting .229/.449/.314 with 1 homer so far this month.
He has major league experience, he has played 416 games over parts of 8 seasons, mostly with Oakland. He also played for the Rays, White Sox and Orioles. He's got a .236/.337/.411 hitting line, with 56 home runs. He has almost no left/right splits, in his MLB career. His OPS is .746 against RHP and .751 against LHP.
Dan has mostly played 1B but has had a few games at 3B and the odd game in LF.
There will have to be a 40-man roster move coming, maybe Neil Wagner will be moved to the 60-day DL, he's been out since June 1 and I don't think he's due back soon.
Update: Well, I was wrong, the Jays have DFAed Bobby Korecky. Korecky did have a moment on the Blue Jays active roster, this season, pitching twice, for a total of 3.1 innings, allowing 4 hits, 3 earned, 1 walk, 2 strikeouts. With the Bisons, he has a 0.57 ERA in 47 innings. I don't really understand why he's the one being dropped, but I guess the Jays figure he can make it through waivers.
More Updates: Minor League tells me that moving Wagner to the 60-day DL is a little more complicated than it should be. He would have to be reinstated from the 7-day DL (where he's been for the past month) and then put on the 60-day, where he would be paid in major league dollars and would be gaining major league service time, which, apparently, the Jays wouldn't want to do.