While North Carolina (3-0) regained its status as the unanimous No. 1 on Monday (31 first-place votes, 775 points), Pittsburgh moved up two spots to fourth to join No. 2 Connecticut and No. 3 Louisville to give the Big East majority rule among the top five.
Pittsburgh (4-0) was the only newcomer to the top five after jumping over No. 5 holdover Duke (6-0). The Associated Press media poll reflected the same top four in its rankings, also released Monday.
Eighth-ranked Notre Dame gives the Big East three teams among the top 10 and seven in the Top 25 in all -- No. 15 Marquette, No. 16 Georgetown and No. 22 Villanova.
UConn received one first-place vote in last week's poll before Monday's rankings put all 31 in the Tar Heels' hands.
The remainder of the top 10 -- No. 6 Michigan State, Texas, the Fighting Irish, Purdue and Gonzaga -- all moved up one spot this week after UCLA (3-1) fell from fourth to 11th following its 55-52 loss to Michigan in the 2K Sports Classic.
Xavier (5-0) was the lone newcomer to this week's Top 25 following the Musketeers' 63-58 upset of Memphis in the Puerto Rico Tip-Off championship game. The Tigers (4-1), last season's NCAA runner-up, dropped from 12th to 17th.
Xavier joined the AP Top 25 at No. 16.
The rest of the second 10 following UCLA: No. 12 Tennessee (3-0), Oklahoma (4-0), Arizona State (3-0), Marquette (3-0), Georgetown (2-0), Memphis, Florida (3-0), Wisconsin (4-0) and Xavier.
Miami, Villanova, Kansas, Wake Forest and Davidson round out the rankings.