Following the success of a similar event last summer, United will be hosting an open training session in Portugal later this week.
After a number of private sessions, the gates will be open to see Chris Wilder and his coaching staff putting the players through their paces in the Algarve heat on Thursday 11th July.
Boss Wilder comments: "We were astounded with how many Blades fans followed us to Portugal last year and the open training session was a success, so we wanted to do it again.
"It was great to give the fans an insight and also the opportunity to interact for a short while before we continue our preparations for Friday night's game against Real Betis."
Thursday's session starts at 10.30am at the Ria Park Garden Hotel (Avenida do Ancao, 8138-162 Almancil). It is expected to last around an hour and fans planning on attending are advised to bring sun cream and water - it's been hot so far and there is very little shade at the venue. Please note alcohol is not permitted.