Arsenal boss Arsene Wenger was delighted after striker Danny Welbeck scored two goals on his first start in eight months.
The Englishman wasted no time at all to show why Arsenal missed him during the time spent on the sidelines as he scored two goals in the first 22 minutes of Arsenal's 5-0 away win at Southampton.
Theo Walcott scored the other three.
"I knew that he worked very hard, but you never know how much efficiency there will be… to transfer that into a competitive game," Wenger explained.
"I think it was great to see that he hasn't lost his runs, he hasn't lost his finishing. It shows as well, when you are able to transform that frustration of not playing into efficiency, that's a special guy.
"We have always two fears - the first is that it takes him too long to get the decision-making, and secondly that the player is scared to go into any contact. When he made the runs and was fighting the defender, for me that was a very important moment for him.
"He worked very hard and he went through some moments of very deep disappointment.
"When he had the setback and we had to go in the knee again, when you're a professional football player, that's absolutely difficult. After the first disappointment, he became even more resilient and worked even harder.
"He's highly respected inside the club because he has shown so much dedication, never moaned, worked very hard and tonight everybody is delighted for him."
