Don't know for what but the story is here.
Update: Someone named WiscoSports Thwips this:
#Brewers will trade IF prospect Brett Lawrie to #Toronto for SP Shaun Marcum pending physicals
Here is Brett Lawrie's minor league numbers, in case that is who we are getting.
Update 2: MLB.com says it will be Lawrie plus others but they won't be named until after the Rule 5 draft.