LAKE BUENA VISTA. Fla. (AP) -- Wayne Chism scored 15 points to lead No. 12 Tennessee to a 78-64 win over Siena in the first round of the Old Spice Classic on Thursday.

Renaldo Woolridge and Tyler Smith each added 14 for the Vols (4-0). Alex Franklin led Siena (2-1) with 17.

The Vols went on an 18-0 run late in the first half and pulled away to a 47-27 halftime lead. Siena scored the first 11 points of the second half, but could not get closer than nine. The Vols led by as many as 21 in the second half.

Bothered by the Vols' man pressure defense and inside strength, Siena missed seven shots and turned the ball over seven times during Tennessee's first half run, including on four straight possessions.

Siena broke out a running game and zone press of its own to start the second half and scored the first 11 points to draw within 47-38. Siena could get no closer than nine the rest of the game, as a Wayne Chism 3 ignited a Vols run that extended the lead to as many as 21.

Tennessee, coming off its best season, which included 31 wins and regular-season stay at No. 1, continues to find some answers in replacing half its offense from a year ago.

The more-athletic Vols exploited Siena's zone early, working 6-foot-7 forward Tyler Smith inside for drives or layups. Tennessee continued its hot shooting. The Vols, who came into the game hitting 54.2 percent from the field, were 50 percent (29-for-58) for the game.

Tennessee will meet the winner of the game between No. 21 Georgetown and Wichita State in the second round of the winner's bracket on Friday.

Siena will play the loser of that game.