Introduced by the customary Viking horn, Brett Favre took the field at 6:20 p.m. local time, with fellow Minnesota QBs Tarvaris Jackson and John David Booty. Sage Rosenfels won’t play in tonight’s preseason game against the Chiefs because of an ankle injury.

New Vikings QB Brett Favre will start tonight’s preseason game against the Chiefs and play one to two series, according to a team official.

The Vikings now have four quarterbacks on their roster, and NFL execs I spoke to told me they anticipate Tarvaris Jackson being shopped in the near future now that Brett Favre is in town.

Brett Favre’s presence will help the fantasy value of receivers Bernard Berrian, Sidney Rice, Percy Harvin and tight end Visanthe Shiancoe. Look at Favre as a viable No. 2 fantasy quarterback and worth a middle- to late-round selection.

Brad Childress said he is in no rush to name a regular season starter after the Vikings’ first preseason game, a 13-3 road win over the Indianapolis Colts.

In a perfect world, Minnesota Vikings coach Brad Childress would manage his quarterback competition by giving Tarvaris Jackson and Sage Rosenfels equal reps in Friday’s preseason opener against the Indianapolis Colts.

One day after Tarvaris Jackson revealed that he “felt something pop for a quick second” in his left knee, Vikings coach Brad Childress said he isn’t concerned about the quarterback pushing himself too hard.

According to The Associated Press, Vikings QB Tarvaris Jackson limped off the field during Friday night’s practice session. Jackson appeared to aggravate his sprained left knee, an injury that had kept him out of training camp for several days.

NFL.com senior writer Steve Wyche was in Mankato, Minn., checking out Vikings training camp. Wyche says Minnesota’s QB situation — even without Brett Favre in the mix — is still intriguing. Tarvaris Jackson returned to the practice field for the first time since spraining his left knee, and Sage Rosenfels looked comfortable at the helm of the first-team offense.

Vikings QB Tarvaris Jackson sprained his left knee Saturday, but he practiced with the team Wednesday morning.

Vikings QB Tarvaris Jackson went through the majority of practice and saw his most extensive action since spraining his left knee Saturday morning.

Vikings coach Brad Childress said Tarvaris Jackson stayed inside Sunday to receive treatment on his sprained left knee, which is expected to sideline the quarterback until sometime next week. Childress also said the team doesn’t plan to sign another QB.

Now that the Brett Favre “will he or won’t he” drama seems to be over, Tarvaris Jackson appears to be maintaining a business-like approach to the team’s quarterback battle.

The Minnesota Vikings wanted Brett Favre to be their quarterback, but the future Hall of Famer decided to stay retired.

Now, Tarvaris Jackson and Sage Rosenfels will compete for the starting job. Coach Brad Childress is focused on moving on from the Favre talk and said the team is “more than content” with Jackson and Rosenfels competing for the right to lead the offense.

Brian Billick, a former Ravens coach and Vikings offensive coordinator, was chatting with NFL fans when news of QB Brett Favre’s decision to stay retired was announced. Billick weighed in on the Vikings’ quarterback situation.