The winger will hope to force his way back into the Southampton first-team.
The Southampton winger was linked with a move to Sheffield Wednesday in August.
The Sheffield United winger was named man of the match as the Blades came away from the home of rivals Sheffield Wednesday 4-2 winners.
Celtic and Southampton appear to be amongst the sides challenging for Manchester City winger Patrick Roberts.
Southampton have been linked with a move for Leeds United defender Pontus Jansson during the summer transfer window.
Sims has received many plaudits for his outstanding debut display in the 1-0 win over Everton at the weekend.
Josh Sims stole the headlines as Southampton beat Everton 1-0 on Sunday.
Everton were beaten 1-0 by Southampton at St. Mary's yesterday.
Southampton beat Everton 1-0 on Sunday afternoon, with Josh Sims starring.
Southampton won against Everton in the Premier League on Sunday evening.