The phrase "able to rejoin the" is correct and usable in written English.
It can be used when discussing someone's capacity to return to a group, team, or activity after being absent or separated.
Example: "After a brief hiatus, she was finally able to rejoin the project team and contribute her ideas."
Alternatives: "capable of returning to the" or "able to come back to the".
He is doubtful to play Friday, but Joe Girardi said Posada may be able to rejoin the lineup Saturday..
One of his colleagues said Mr. Zhang had expressed hope that he might be able to rejoin the paper later.
Then I'll be able to rejoin the party, and I might even look forward to the Belmont.
Germany was able to rejoin the gold standard after the first world war thanks to the confidence-boosting Dawes Plan in 1924 dealing with reparation payments.
(After the schedule was changed for Ms. Poehler, Ms. Schaal was able to rejoin the shoot — so the episode included both).
George Galloway is not going to be able to rejoin the Labour Party without causing an "almighty row", not least from female MPs.
Rosberg was forced to retire, but Webber, Grosjean and Senna were all able to rejoin at the back of the field after pit stops, with Webber driving a quietly determined race to get back up into the points in ninth place.
There, from infancy to teenhood, orphaned elephants are nurtured and taught elephant ways and values by caregiving African men so that they are able to rejoin their pachyderm kin in the wild expanses of Kenya.
Had Williams responded with Massa on the next lap, the Brazilian would almost certainly have been able to rejoin still ahead but Williams were worried the two remaining stints would then be too long for their car.
His parents say that.... Since there is absolutely zero chance that we will allow that to happen, [ reform school] the only hope for Zachary being able to rejoin his friends at Downes Elementary is if Christina School District Superintendent Marcia Lyles or the Christina School Board intervenes to overturn the committee's decision.
Still, thanks to the skipper of the Squalo IV, we were able to rejoin our cruise by performing a Bond-like mid-channel leap from the back of his vessel into the Virginia's inflatable launch.
