Chelsea boss Pochettino told BBC MOTD: "Football is about scoring goals and we were not clinical in front of goal. I'm really, really disappointed. We didn't get the point we deserved. I think we were better but we didn't get what we wanted.
"This was a game to play and to win. It's a problem we need to check. We need to analyse the reality. We need to talk and to try to improve in the next transfer market."
On James' injury, he added: "He felt something in his hamstring. It's not so nice for him to suffer another injury. He is an important player."