We’re winding down the 2010 version of On the Fringe and tonight’s final preseason games could be very important for all, but especially two of the four players we’ve followed. (San Diego wide receiver Gary Banks has been cut and is waiting for his next opportunity). Teams have to trim rosters to 53 players Saturday so the next few days for LeGarrette Blount, Ricky Foley, Alex Boone and Cody Grimm, will be precarious.

Let’s examine where our guys stand:

LeGarrette Blount, RB, Tennessee Titans: He needs to show well when the Titans play host to the Saints. He figures to get some extended playing time, maybe as soon as late in the first quarter or early in the second.

The 240-pound Blount spent most of the preseason feeling pretty comfortable that he was the perfect short-yardage back. Then he got a dose of NFL reality when the Titans signed free agent Samkon Gado, who immediately played well — and ahead of Blount — in Tennessee’s Week 2, preseason victory over Arizona. Gado’s presence (19 yards on nine preseason carries) seemed to spur Blount (16 carries, 59 yards) but the undrafted rookie from Oregon needs to prove he’s more worthy than the fifth-year veteran.

I remember asking Blount during our initial interview for this project if he understood that teams can bring in players at any time to compete with him or replace him. I wasn’t sure if he understood the seriousness of it then. I’m sure he does now.

Chance to make the final roster: Pretty good

Ricky Foley, OLB, Jets: Foley was signed Tuesday after being cut by Seattle, so his knowledge of the Jets’ defense will be minimal, especially since they play a 3-4 scheme and he was working in a 4-3 front in Seattle. That change isn’t as easy as it seems.

I’d expect Foley to only be used on special teams and in some pass-rushing situations against the Eagles. He might get some extended action late. That’s not much time for the former Canadian Football League sack specialist to impress, so he better not waste a snap. He also needs to stay disciplined because Michael Vick can make you look bad on backside bootleg runs.

The Jets are looking for depth with OLB Calvin Pace out so Foley has a chance. The Jets clearly have had their eye on him, seeing as though they claimed him off waivers shortly after being released.

Chance to make the final roster: Questionable

Alex Boone, OT, 49ers: Boone will probably get in the game early and play extended snaps against visiting San Diego. Boone seems in really good position to make the team, having spent much of the preseason working as the No. 2 left tackle. The former practice squad player can’t afford to let down, though. He’s ascended up the depth chart, but a bad outing could show the coaching staff that maybe it doesn’t mean as much to him as they thought and he could get pushed back to the practice squad if there is a numbers crunch when rosters need to be trimmed.

Chance to make the final roster: Very good

Cody Grimm, S, Tampa Bay: Grimm has really turned heads over the past few weeks and is listed as the No. 2 free safety behind emerging standout Tanard Jackson. Grimm (eight tackles, one pass defensed) should play the majority of the game at safety and on special teams vs. Houston, which will test him repeatedly in the passing game.

Chance to make the final roster: Very good

Steve Wyche