during the preseason game at Arrowhead Stadium on August 28, 2015 in Kansas City, Missouri.,KANSAS CITY, MO - AUGUST 28: Outside linebacker Justin Houston #50 of the Kansas City Chiefs in action during the preseason game against the Tennessee Titans at Arrowhead Stadium on August 28, 2015 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
The Kansas City Chiefs could be without pass-rushing linebacker Justin Houston when they begin training camp -- and perhaps when they begin the regular season.
Houston had ACL surgery in February and is expected to be sidelined 6-12 months, according to multiple reports.
Houston, 27, had 7.5 sacks and two interceptions in 2015 -- one season after leading the league with 22 sacks. He has been named to the past four Pro Bowls and was a First Team All Pro in 2014.
However, he missed the final five regular-season games in 2015 because of a knee injury before returning for the Chiefs' two playoff games.
Earlier this month, the Chiefs re-upped with fellow pass rusher Tamba Hali, who had 6.5 sacks last season and who has 86 sacks in his 10-season NFL career.
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