Memphis basketball led South Florida by as many as 20 points Thursday at FedExForum and was up 47-32 at halftime.

But unranked USF (10-5, 3-1 AAC) battled back to beat the No. 12 Tigers 74-73 and snap their 10-game winning streak.

Kasean Pryor sank two free throws with 4.4 seconds left to decide the game. Jahvon Quinerly, who has made two game-winning 3-pointers this season, missed on his 3-point attempt as time expired.

Here are five observations from Thursday's game.

USF offense: Cold as ice early, hot late

The Bulls have held their own offensively this season. Coach Amir Abdur-Rahim's squad was scoring 76.4 points per game and shooting 43.0% from the field.

But against the Tigers (15-3, 4-1), USF was largely out of whack. In the first half, it trailed 47-32 and made just 33% of its shots. That cold run was underscored by an 0-for-12 stretch that fell within a 2-of-20 span.

As the Bulls were having difficulty gaining much traction on offense, Memphis took advantage, outscoring them 32-7 in a little over 11 minutes.

The second half was a different story. USF started the final 20 minutes 0-for-3 from the field, then got hot, making eight of its next 12 field goal attempts and cutting the Tigers' lead to 59-55 with 10:45 left in the game.

David Jones picks up where he left off

What does a player as prolific as David Jones do for an encore after scoring 17 second-half points in last week's win at Wichita?

Well, he tops it.

In the first half against USF, the 6-foot-6 stick of dynamite exploded for 18 points in just 12 minutes. He was efficient, too, connecting on 7 of 9 from the field (2-for-3 beyond the arc) and made both of his free-throw attempts.

Jones' layup with 6:07 left in the first half gave him 18 points — more than the Bulls had as a team (17) at that point.

Jones finished with a game-high 25 points.

USF backcourt as advertised

The Bulls brought one of the more productive guard tandems to Memphis. Chris Youngblood and Selton Miguel came in averaging more than 14 points apiece.

That pair kept up its good work against the Tigers, combining for 36 points. Miguel, who finished with four fouls, made nine field goals, five from the 3-point line.

Pryor balanced things out with 21 points and a game-high 10 rebounds.

Tigers dominate specialty stats

Memphis made big things out of the little things.

The Tigers took command of the area around the basket, outscoring the Bulls 42-18 in the paint. They also dominated USF in the fast-break game, finishing with a 21-2 advantage.

Jaykwon Walton hurt?

One of the many bright spots for the Tigers in last week's 112-point game at Wichita State was Jaykwon Walton. The transfer dropped a season-best 23 points on his former team, with six made 3-pointers.

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That strong play did not carry over against USF. In 11 first-half minutes, he was held scoreless on just one field goal attempt.

But that wasn't the concerning part. Walton, who was sporting a wrap on his left calf, abruptly left the game favoring that leg with 9:01 to play before halftime. He went into the locker room for a short time and returned at the 5:48 mark. He finished with two points, three rebounds and two assists.

Reach sports writer Jason Munz at jason.munz@commercialappeal.com or on Twitter @munzly.

This article originally appeared on Memphis Commercial Appeal: South Florida stuns Memphis basketball with huge comeback win