Australia 311 for 5 (Khawaja 126*, Carey 52*, Head 50) trail England 393 for 8 declared by 82 runs
Khawaja was the nearly man of Australian cricket for much of his career, playing 93 times for his country before his 34th birthday without ever feeling like a permanent fixture in the side. His technique and temperament were called into question, and after three years out of international cricket, it seemed he had served his time.
But in the Birmingham sunshine, Khawaja cut Ben Stokes for four and raced down the pitch to celebrate his seventh Test hundred since his recall 18 months ago. Since the start of 2023, he has scored hundreds in Australia, India and now, for the first time in his career, England.
On a slow, dry pitch, Khawaja and Australia scored at a different tempo to the one England had set on the first day. They scored at barely two-thirds of the rate of England's first innings, yet with Khawaja's innings - littered with crisp pulls and handsome drives - ensured that they trailed by only 82 at stumps.
It was the 15th time that Broad had dismissed Warner, but he celebrated as though it was the first, racing away towards the Hollies Stand with his fists clenched so hard that the veins in his neck throbbed. As Marnus Labuschagne asked a policeman to move from his perch next to the sightscreen, Broad sensed something was brewing.
Raising his hand and whirling his finger, he geed up the crowd at the top of his mark. Coming from wide on the crease, he angled an outswinger into him, and Labuschagne could not resist driving away from his body. Jonny Bairstow tumbled low to his right, taking the catch one-handed, and Australia were 29 for 2.
His first delivery was a front-foot no-ball, perhaps striving to prove his fitness despite a chronic knee issue, but the last ball of his second over skidded into Smith's pad. Marais Erasmus eventually gave Smith out after Stokes pleaded for the decision, and the DRS could not save him: ball-tracking predicted the ball would have hit the top of the stumps.
Khawaja took 106 balls to reach his half-century, while Head got there in 60, cutting an out-of-sorts Ollie Robinson away behind square. He didn't score another run, skipping down the pitch and miscuing Moeen to short midwicket; Moeen pointed to Stokes at mid-off as he turned away in celebration.
Moeen should have had two wickets in three balls, beating Cameron Green as he charged out of his crease. Instead, an unsighted Bairstow missed the stumping chance and Green added 72 with Khawaja for the fifth wicket in a stand that spanned the tea interval.
The best ball of the day accounted for Green on 38, as Moeen flighted an offbreak wide outside off. It drifted away a touch, then spun back sharply from a good length to beat Green - lunging forwards as though stepping on an insect - on the inside edge and peg back his leg stump.
But the third umpire noticed that Broad had overstepped, and he survived until the close once again. The crowd had started to filter out by the time he walked off with a beaming smile, at the end of a day that will be remembered as Usman Khawaja's.
Matt Roller is an assistant editor at ESPNcricinfo. @mroller98