When he turns 45 on April 25, he will be the oldest player ever to play shortstop in the major leagues.

Congrats to Omar. Is he the last big leaguer to have played in the old Comiskey Park?

On several levels, this is not necessarily accurate.

Congrats to Omar. Is he the last big leaguer to have played in the old Comiskey Park? (Jamie Moyer may have pitched there in a Cubs-Chisox exhibition game, but I don't think he was in the AL before 1990.)

And 2 of them are Omar Vizquel and Jeff Mathis?

Oldest players to play MORE than 1 game in a season, by position:

C: Grover Hartley, 46
1B: Julio Franco, 48
2B: Arlie Latham, 49
SS: Booby Wallace/Omar Vizquel, 44
3B: Julio Franco, 48
LF: Rickey Henderson, 44
CF: Sam Rice, 43 (beats Rickey by a week)
RF: Sam Thompson, 46

I have no problem with this. He's perfectly acceptable as a back-up middle infielder, and can also act as a quasi-coach.

I am completely ignorant about the Jays minor league players but isn't there some one that could be gaining valuable MLB experience but is being blocked by a 45 year old former fielding wiz who is now, and has been for some time, a liability with a bat in his hand?

It's not like he's going to be playing every day. Whatever person you're describing is probably better off playing every day in AAA then playing once a week as a defensive replacement like Vizquel will be doing.

1. He's not guaranteed to live that long (no one is.)
2. He's not guaranteed to be playing SS in MLB on April 25 (he's played an astonishing 18 games at SS the last two years.)
3. He will likely become the oldest player to play SS much before April 25th, since Bobby Wallace's last game was two months before his 45th birthday (and he may or may not have played SS in that game.)

Am I missing any?

And 2 of them are Omar Vizquel and Jeff Mathis?

He's perfectly acceptable as a back-up middle infielder, and can also act as a quasi-coach.

Vizquel didn't hit well last year, but he had a good 2010.

You're going to throw 200-250 PAs down the drain, and he probably shouldn't really be playing shortstop anymore. I know we have low standards for 25th man on the roster, but I'd think you can get a little bit more at back-up middle infielder just off the waiver wire.

You know, I bet Franco could still play. He was in better shape as a near 50 year old than most rookies are these days. Wait... he's still alive right?

You're going to throw 200-250 PAs down the drain, and he probably shouldn't really be playing shortstop anymore. I know we have low standards for 25th man on the roster, but I'd think you can get a little bit more at back-up middle infielder just off the waiver wire.

the majority of those guys are still considered shortstops, which as #10 shows, Vizquel really isn't anymore.

Valbuena hasn't in the bigs, but has in the minors and his projections outstrip the other candidates offensively.

The fact that Vizquel didn't play much SS the last two years is in large part a function of the team he was on the last two years. Alexei Ramirez played 156 and 158 games the last two years and was one of the better SS in the American League both years. Vizquel played more 2B and 3B because that's where the White Sox had more need for their utility infielder to play.

While we're on the subject of Jay infielders, what are the organization's plans for Hechevarria? Do people think he can ever hit enough to unseat Escobar? The Jays might have a logjam in the OF, especially if Rasmus can reconstruct himself, but they don't seem to have a ton on the way up in the middle infield.