You have a site here that's focused in terms of interest and geography, so you can do a lot better than Adsense if you're serious about making more money.
1. Amazon affiliate and sprinkle Jays memorabilia links around. It's pretty easy to do and the commission should at least be better than Adsense, though not much better.
2. Set up some sort of Groupon or RetailMeNot deal with local restaurants, bars and other businesses where you print off a coupon from this site and you get a 10% discount on the evening immediately following Blue Jays games. Either sprinkle the coupons around on the site or have its own dedicated section if you get enough demand. It could also work for Raptors or Leafs games in the off-season. You just need to send a form email to every potential customer within a 2 km radius of the Rogers Center or ACC or go door-to-door if you're really ambitious.
3. Get some rep at Rogers on the phone and see if you can become a partner site for the Jays. For what exactly, I don't know. It's your site so you'd have to figure that one out.
If you're too lazy or busy to do all this stuff, especially #2, hire one or more of these school-aged guys to do it as a summer job and share the commission with them. Then the only thing you need to do is the back-end work on the site and maybe some accounting/auditing and relationship management with any clients you do get.