The Los Angeles Chargers are getting Melvin Gordon back, but Justin Jackson may miss some time in the backfield. On Friday, Jackson was seen sporting a walking boot at practice for the Chargers.

Just a day ago, Jackson was added to the team's injury report for Week 4 with a calf issue. Then, just two days before the Chargers face the Dolphins, the second-year running back was out of practice and in a walking boot.

When Gordon ended his holdout earlier in the week, Anthony Lynn was noncommital to saying that he would suit up on Sunday against the Miami Dolphins. However, now with an injury to Jackson, Gordon may be needed in the offense.

While Gordon was away from the team for over two months, Jackson and Austin Ekeler shared the backfield duties. As a matter of fact, the duo of Ekeler and Jackson proved to be worthy of replacing Gordon in Los Angeles.

In the first three games of the season, the Chargers duo has combined for 335 rushing yards and two touchdowns on the ground. Individually, Jackson has rushed for 142 yards on a whopping 7.9 yards per rushing attempt this season.

But with Jackson's calf injury, Los Angeles only has one healthy running back on the roster aside from Ekeler. The only other running back currently on the roster is Troymaine Pope—a journeyman running back who has only played in six games in his four-year career.

Therefore, the Chargers will likely promote Gordon to their roster and he will get some touches in Week 4. At the same time, he hasn't been with the team for 64 days so don't expect him to have a large workload versus the Dolphins.