And not because he apologised to his boss for scoring against Germany.
The former PAOK striker will be in the squad to face Newcastle, as will compatriot Charalampos ‘Babis’ Kostoulas.
Both played for Greece under-21s as they enjoyed a winning international window.
Tzimas scored in both games, away to Germany and Latvia, in Euros qualifiers.
He was joined on the scoresheet in Germany by Kostoulas’s older brother, Konstantinos.
Albion boss Fabian Hurzeler said he could see his Greek duo were buzzing when they returned to their club.
He said: “It was very important for both, for Stefanos and for Babis.
“I wasn't happy about who Stefanos scored against!
“When they faced Germany, he had a very good pressing game and he scored against my country.
“Then afterwards I received a message from him and he said, ‘Sorry for scoring against your country’. I accept that apology!
“Overall I'm very happy how they performed, how they both try to improve every day on things that are important for them to get game time.
“You could feel it when they arrived back in training, they are in a positive mood, they are ready to go again.
“They are getting closer and closer to the team.
“I said at the beginning of the season, we need to give them time.
“We don't know how long it takes, but now they're doing really well in training.
“They did well for the country, they are scoring goals.
“They look sharp, they look physically ready, so they are getting closer and closer.
“They both will be in the squad. Let's see if they can get game time.”