The Uruguayan completed the full 90 minutes at Old Trafford as Brendan Rodgers' team were eliminated from the Capital One Cup by Javier Hernandez's smart second-half finish.
"The result is not good because we lost but the feeling is good because we played very well, we created chances and we missed," Suarez told Liverpoolfc.com post-match.
"I know it was a difficult moment but for myself and for the team it's very important I'm back because I can help the team and [being] off the pitch I can't. We'll keep going for the week and for the next game.
"All the time I try my best on the pitch. I'm here to help the team and help Liverpool and I'll try my best."