Undefeated Connecticut broke into The Associated Press Top 25 on Sunday, but remaining part of the rankings might prove more difficult than getting there.
Quarterback Tyler Lorenzen, who broke his right foot in Friday's victory over Louisville, will miss six to eight weeks because of the injury, UConn coach Randy Edsall announced Monday.
Tight end Steve Brouse, who has a broken leg, also will be out for six to eight weeks.
No. 24 UConn's 26-21 win at Louisville gave it a 5-0 start for the second consecutive season. Prior to 2007, the Huskies had not started 5-0 since winning their first six games under Skip Holtz in 1995.
Against the Cardinals, sophomore Zach Frazer threw for 90 yards and a touchdown in place of Lorenzen, but Donald Brown -- the nation's leading rusher -- did most of the work. The junior carried the ball 33 times for 190 yards.
Lorenzen, a senior, is 52 of 90 for 551 yards and one touchdown this season. He threw for 2,367 yards and 13 touchdowns as a junior.
Information from The Associated Press was used in this report.