Jamal Thiars recurring calf injury has cropped up again, which will sideline him from the Crew lineup for an unspecified amount of time.More: Columbus Crew again facing goal differential challenge in Leagues CupThiar, acquired Jan. 31 in a trade with Atlanta United, is dealing with the lingering injury that has hampered him since April. After logging 86 minutes in a key 2-2 draw Aug. 1 at Inter Miami, he wasnt available in either of the Crews first two Leagues Cup games wins over Atlas FC and CF Pachuca.Asked for an update on Thiar on Aug. 10 at Ohio Health Performance Center, interim head coach Laurent Courtois said the speedy forward has regressed after returning from the month-long World Cup break.He had to kind of force it a little bit to come back because he wanted to contribute so bad, and we [also] needed him so bad, Courtois said. So, maybe we both went a little bit faster than maybe we wouldve wanted for his total recovery, and right now were going to be able to really give him a chance to put this behind him once and for all but it needed to be taken care of, so this is what were going to do this time.When healthy, Thiar provides speed up front to stretch the field. He was acquired two days before the Crew sent forward Jacen Russell-Rowe to Toulouse FC of Frances Ligue 1 on Feb. 2, but hasn't been healthy enough to make a big impact offensively. Thiar has started in just three of the 12 MLS games he's appeared in, scoring one goal July 25 in a 2-1 victory over rival FC Cincinnati.Combined with star forward Wessam Abou Alis season-ending knee injury, not having Thiars speed and skill creates quite a challenge on the attack. Options to replace Thiar include midfielder Taha Habroune, rookie forward Chase Adams and forward Gonzalo Tapia, whos expected to arrive Aug. 12 on loan from Sao Paulo of the Brazilian League.Dispatch Blue Jackets/Crew reporter Brian Hedger can be reached at bhedger@dispatch.comThis article originally appeared on The Columbus Dispatch: Columbus Crew's Jamal Thiar to miss time with lingering calf injury