Puppy meeting puppy

[gegeve01]

I adopted a 6 month old lab mix named Riley two weeks ago. Today we introduced him to our newest addtion, a 7 week old boxer. Riley has been very overbearing and biting him over the head, neck and penis. He seems to be playing very rough with him. He is very jealouse when the new pup comes to see me and he doesn't like the new pup playing with his toys. He's only snarled at him whilst eating. I'm wondering what to do and if this means he might be aggressive towards babies in the future?