Theo Walcott says Arsenal's fast start was the key reason for their comprehensive win over Stoke City on Sunday.
Laurent Kosicielny's header and an exquisite individual goal from Alexis Sanchez gave Arsenal a commanding two-goal lead in the first half.
The in-form Chilean added another on 48 minutes before Walcott was introduced midway through the second half and he was pleased to get some minutes under his belt.
"You want all your players fit and I think the boss will have a selection headache soon"
"I'm not quite sharp enough yet but that will come,” he said. "I'm just happy to be back and it's the same with Mesut [Ozil] as well.
"From the start of the game we were on the front foot and that's what the boss said to us. He wanted us to have a very positive start and we didn't give them any rest at all and started like a house on fire.
"It gives a boost to the whole squad when players who've been out long-term are coming back. It lifts everyone's spirt.
"Going into one of the busiest periods of the season, you want all your players fit and I think the boss will have a selection headache soon."
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