ST. LOUIS -- The Jacksonville Jaguars have lost two left tackles in less than a week.
The injury occurred six days after Eugene Monroe was traded to Baltimore for fourth- and fifth-round draft picks.
"It wasn't pretty," said Jaguars quarterback Blaine Gabbert, who left the game in the third quarter with a hamstring injury. "That's tough. My heart goes out to him because he was playing well and he was eager to get in at left tackle. That's the rough part about this game. It is a physical sport and injuries like that do happen."
Joeckel, whom the Jaguars took with the No. 2 overall selection in April's draft, had started the first four games of the season at right tackle because of Monroe, who had started 58 games at left tackle since the Jaguars drafted him with the eighth overall pick in 2009.
Joeckel was moved to left tackle, his more natural position, after the Jaguars traded Monroe last Tuesday.
Joeckel was injured when his right leg got caught underneath him when he was rolled on by several players at the end of a running play. Players immediately called for trainers, and Joeckel was taken from the field on a motorized cart.
Joeckel underwent X-rays, which revealed the fracture. Jaguars coach Gus Bradley said the injury is not career-threatening.
"They took an X-ray a little bit lower [of Joeckel's leg]. They didn't see it," Bradley said. "They went up and took a little higher X-ray and saw it."
Joeckel's injury was the first of a series the Jaguars experienced on Sunday. Gabbert suffered a strained left hamstring while scrambling to his right on a third-down pass attempt in the third quarter. He limped back to the Jaguars' sideline and was replaced by Chad Henne on the next possession.
"I was just running and felt my leg give a little bit," Gabbert said. "We'll know more tomorrow."
Gabbert had completed 9-of-19 passes for 181 yards and one touchdown with two interceptions before leaving the game. Bradley said Gabbert will be evaluated again on Monday.
Tight end Allen Reisner suffered an MCL sprain in his knee but did return to the game. Bradley said he also will be evaluated again on Monday.