He has shown signs of recapturing his brilliant best this season but Terry, who is grateful to Mourinho, insists nobody is safe under the watch of the Portuguese coach.
"My career is where it is because of this man next to me now," Terry said of Mourinho. "I'm very proud to be working with him again.
"He laid the law down [on his return]. If you play well, you're in the side. If not, you won't play.
"'When you're not playing week in, week out, it's difficult to take. When you get the chance you have to impress to stay in."
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