Pre-season football, there is nothing like it. Unless you count pre-season baseball, exhibition soccer, the Pro Bowl, the All-Star game, pre-season hockey, pick-up cricket, your neighbor's kids playing 21 in the driveway, a game of pool by yourself, darts, channel surfing, etc.

This pre-season, at least in the Bears respect, there is something to watch for. There is a completely new offense being implemented by the "guru" Mike Martz. There is Jay Cutler and the receivers who have to learn this extravagant and complicated system. There is an offensive line that might possible be more aptly named than most would like to believe. Not to mention the return of Brian Urlacher and of course the addition of Julius Peppers.

When the Bears take the field in San Diego tomorrow night, there is a reason to tune in. It will be the first time fans will get a chance to see how all of these parts are working together, and how they will pbe able to perform against real opponent, against a real 1st team defense other than their own.

Lovie Smith hinted that some may even play into the second quarter, which may or may not interest you based on the competition.

So what will I be watching tomorrow when I sit down to watch some football?

Offensive line play: This will be the key to the entire season. From most reports this offensive line is in trouble and if Cutler isn't protected the whole thing goes downhill. Chris Williams will be your starter at left tackle and may have benefited from facing Peppers in one-on-ones in camp. Frank Omiyale is the major question mark. Indications are that he isn't where he needs to be. Omiyale and the left side of the line is where I will focused.

Passing game: This whole Martz thing is based on timing. The Bears haven't got the most experienced core of receivers. This combined with the complexity of the system and the inability of the line to protect could put Cutler in a dangerous position, one that may have a lot of fans throwing their hands in the air while Jay throws the ball into the hands of the opposition. Every Bear fan should be curious to see how far along this group is within the Martz playbook. We won't see everything, but we should be able to see if they are grasping this thing or not.

Defensive line: Most notably Tommie Harris. Of course everyone wants to see Peppers. But what good is Julius if Tommie isn't making his prescence felt? Harris needs to be the player he was a couple of seasons ago, or close to it, to take the pressure off of Peppers. We all know by now how the Cover-2 works and Harris is the key.

Safety: The Bears were rough against the pass in 2009, surrendering 29 touchdowns through the air. The addition of Chris Harris should help, but the question is how much? Between Harris and Daniel Manning the safety position is another place to watch. Let's pray no one gets hurt in the defensive backfield, because I for one an not confident the Bears have the depth to overcome injuries here.

Those are the few main things I will have my eyes on tomorrow, as well as how Brian Urlacher has recovered from his injury. The final score won't matter, and it will be fun to have football to watch again. Let's just hope its quality football.