Jason Segel says his 'How I Met Your Mother' co-star Alyson Hannigan taught him 'how to be a man'.

The 34-year-old, who reportedly checked into rehab following his split from Michelle Williams last February, said he is really going to miss his co-star when the show finishes in March after nine seasons, reports femalefirst.co.uk.

"Aly taught me a lot about how to be a man, I gotta say. I was 25 when I took the show. I think we've all been through a lot personally," Segel told on a chat show.

"Aly and I have a lot of scenes together, spend a lot of time together, and she's always been there to listen to me and give me advice. (She) saw me through hard times and good times. I learned a lot from being around Alyson about the kind of person that I wanted to be," he added.