UPDATE: Looks like the tests didn't find any new injury and that Lodeiro will be traveling with Uruguay to the Copa America.

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Even when it comes to players they are hoping to sign, the Seattle Sounders can't seem to catch a break. Nicolas Lodeiro returned from meniscus surgery last week, putting in a strong 45-minute performance in Uruguay's Copa America warmup match.

But the midfielder apparently felt some discomfort during Tuesday's training session. Although he was able to finish the session, he's scheduled to undergo some testing to see if he re-aggravated the injury.

Lodeiro es duda para la #CopaAmérica. Momento de la lesión en la práctica. @InformacionCABJ. Foto: Francisco Flores pic.twitter.com/d3EYSWMuLV — Urugol (@urugolcom) May 31, 2016

Lodeiro originally injured his knee at the end of April and was expected to be out as long as three months. But he was able to return to training after just two weeks, prompting Boca Juniors to name him to their Copa Libertadores team and Uruguay to place him on the Copa America roster. Lodeiro ended up playing less than a month after the surgery.

If Lodeiro has re-aggravated his injury, that would certainly end his participation in Copa America and likely the Copa Libertadores. It could also put his potential transfer into jeopardy, as the Sounders -- or anyone else -- would probably be very wary of adding a player currently dealing with a knee injury.