Can we draw the following hypothesis from the context? 

Context:

Joseph Edward Lauzon Jr. (born May 22, 1984) is an American mixed martial artist competing in the UFC's Lightweight division. He is tied with Nate Diaz as having the most post-fight bonus awards in UFC history. Joe's younger brother, Dan Lauzon, is also a mixed martial artist.

Hypothesis: Dan Lauzon was born in 1985
It's impossible to say