Thierry Henry believes Raheem Sterling was unhappy with Graham Potter’s decision to substitute him in Chelsea’s 1-1 draw with Red Bull Salzburg on Wednesday evening.Chelsea news, exclusives and analysisChelsea’s Champions League campaign continued to stutter as the draw at Stamford Bridge has left them bottom of Group E with one point in two games.Sterling scored Chelsea’s opener against Salzburg with a brilliant finish in the second half but the Austrian champions escaped Stamford Bridge with a point after Noah Okafor capitalised on poor defending by the hosts.But Sterling looked less than impressed with Potter as he was replaced by Christian Pulisic with six minutes remaining as Chelsea pushed for the winner.‘We all noticed and we were like, ‘it’s early’ and everything,’ Henry told CBS Sports about Potter’s decision to substitute Sterling.‘First and foremost I don’t know why he took Sterling off because he scored and you know he could score another goal.‘It’ll be interesting to see how he’s going to deal with that tomorrow morning because he [Sterling] didn’t look happy.‘Maybe we’re going a bit too much into it, but when they showed him on the bench, I think I wouldn’t have liked to come out after [scoring] a goal, let’s see how he’s going to deal with that one.’Premier League reveal how clubs and fans will pay tribute to the Queen this weekendChelsea fans plan minute's applause for Thomas Tuchel in Champions League matchRangers sing national anthem despite UEFA declining request for Champions League gameMeanwhile, Jamie Carragher says he was unconvinced by the system Potter used in Chelsea’s draw with Salzburg.Asked if he felt Potter’s formation worked with Chelsea, Carragher said: ‘Not particularly.‘They didn’t win