This hasn't been officially announced by the Reds yet, but I have a solid source on this one that says that center field prospect Drew Stubbs is getting the call to the big leagues and will be with the team in Cincinnati tonight.
Stubbs, as you know, was taken with the 8th overall pick in the 2006 draft (one pick ahead of Tim Lincecum) out of the University of Texas. At the time, he was considered a legitimate 5-tool player, though there was some question as to whether or not his power would develop and he had some serious contact issues. He appears to have improved his contact, but the power has yet to develop.
He has two strong points to his offensive game though, which are his ability to get on base and his speed when he's on base. He's never posted an on base percentage below .353 at any level, typically maintaining a walk-rate of greater than 10% each season. Hopefully this is something that he can continue to do in the big leagues because his contact rate isn't great enough that we can expect him to be a high average hitter. As for his speed, he is 46 of 54 this season alone in stolen base attempts and has stolen 121 bases in his minor league career at a 77% success rate. If his minor league numbers are any indication, he is the sort of player that both Dusty Baker and I can agree would be just fine in the lead-off spot.
His offense is definitely not his calling card though as Stubbs is reported to be a gold glove caliber center fielder. Minor league fielding statistics are primitive at best, but TotalZone at MinorLeaugeSplits.com seems to validate that reputation, rating Stubbs as a 20+ R/150 defender at each level.
I've said it before, many times on this site, but Drew Stubbs appears to be the exact sort of player that the Reds had hoped Willy Taveras would be. Hopefully he validates that for us in his shot with the team this season.