The 29-year-old Chile international has been adapting to life at Old Trafford after having moved to Manchester United from Arsenal in the January transfer window.
Sanchez had initially been refused entry to the United States for Manchester United’s pre-season tour due to visa issues, but the former Arsenal star has now linked up with his team-mates in Los Angeles.
The attacker has enjoyed his first summer off in nine years after Chile failed to make it to the World Cup in Russia.
Manchester United fans will be hoping to see Sanchez hit top form in the coming weeks and months, and Irwin believes that his experience up front will prove crucial in the first part of the season for the Red Devils.
Speaking in an interview with Manchester United’s website, Irwin said: “His arrival is a boost for the squad and this pre-season training will be good for him.
“Alexis came to the club in January and he knows the Premier League, but this is a chance to get to know his new team-mates even better. You can’t beat pre-season!
“Don’t forget he has been working at the Aon Training Complex as well, so he is not rusty, he is up to speed, and that leads me to think he will play a part against San Jose Earthquakes.
“We need his experience as well up top. With Romelu Lukaku and Marcus Rashford not out here after the World Cup, we are a bit thin on the ground in terms of experienced strikers and I have no doubt that Alexis will play up the middle at some points against San Jose Earthquakes.”
Manchester United are looking to challenge for the Premier League title next season after finishing in second place in the table and without a trophy last term.
The Red Devils are looking to try and win the Premier League for the first time since Sir Alex Ferguson’s final campaign in charge in 2013.
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