The Texans interviewed Ryans on January 20, ahead of the 49ers' Divisional Round playoff game against the Dallas Cowboys. Ryans also interviewed with the Denver Broncos on January 19 but reportedly informed the team that he was no longer interested in their head coaching job.
Ryans joined 49ers head coach Kyle Shanahan's staff in 2017 and has spent the past two seasons as the team's defensive coordinator.
Joining the Texans would mean a reunion with the team that selected Ryans in the second round of the 2006 NFL Draft. He played linebacker for six seasons in Houston.
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