Match ends, West Ham United 1, Sheffield United 1.
Lys Mousset has to work on his physical condition to become a regular starter, said Sheffield United manager Chris Wilder after the striker scored for a second successive game to earn a point at West Ham.
The £10m summer signing began from the bench for a sixth league game this season despite scoring the winner against Arsenal last Monday in his first start.
The Blades boss said: "We have got to get him up to speed and we have got to work on his condition.
"After scoring the winner against Arsenal he should have been a shoo-in to start today, but we felt he needed a couple more days to recover, so kept him on the bench.
"He has showed us his talent in glimpses, but he can certainly be a threat in this division."
Mousset was brought on in the 63rd minute and found the net six minutes later when his side-footed volley bobbled past the reach of keeper Roberto Jimenez.
The Hammers had taken the lead just before the break when Robert Snodgrass fired low past Dean Henderson, after the Blades failed to deal with Jimenez's punt upfield.
Snodgrass saw another effort come back off the post, and team-mate Andriy Yarmolenko fired a shot fractions wide in stoppage time.
West Ham and the Blades now both have 13 points from 10 games, with the Yorkshire side two places higher thanks to goal difference.
Resolute Blades remain unbeaten away
This was another mature display from the promoted side, whose manager Chris Wilder has been lauded for his tactics this season.
They were difficult to score against in the Championship last season and the current joint-second best defensive side in the Premier League are making it as hard against a higher standard of opponent.
West Ham had 10 corners on Saturday, but did not test Dean Henderson with any of them as the keeper's backline time and time again cleared the first ball.
The one major error led to the West Ham goal, when Enda Stevens failed to deal with Jimenez's goalkick allowing Felipe Anderson to set up Snodgrass.
At the other end, David McGoldrick's backheel flick forced a good save from Jimenez, and Callum Robinson would have found the net had he connected with a cross with his head instead of his shoulder.
The visitors deserved to level in the 69th minute. Issa Diop's defensive header was nodded by Stevens into the path of Mousset who placed a first-time volley into the bottom left of the goal.
Snodgrass return boosts Hammers
That is now only two points from 12 for the Hammers, although this was a much improved display from the ones against Everton and Crystal Palace.
Snodgrass, back in the starting line-up and making only his second league start this season, was arguably the best player on the pitch. The Scottish midfielder was a threat on the left throughout the match and a bigger threat in the area, underlined by his well-taken goal and near-miss after the break.
Brazilian playmaker Felipe Anderson also produced a good performance and was unlucky to see his low dipping effort drift past the far post in last few moments of the match.
Hammers fans taunt Blades with Tevez masks
There was a bit of light-hearted ribbing in the home sections as some Hammers supporters wore Carlos Tevez masks.
The Argentine forward scored the winner for West Ham against Manchester United on the last day of the 2006-07 Premier League season as the Hammers stayed in the top flight and Sheffield United went down.
The Blades and other rival clubs insisted the summer signings of Tevez and his compatriot Javier Mascherano were illegal because of the issue of third-party ownership.
The Hammers were eventually punished financially, but were not docked points.
'We had chances to win it' - reaction
West Ham manager Manuel Pellegrini speaking to MOTD: "In football you must score. We dominated the game and tried to create options to score.
"We had two or three chances and must decide the game by scoring. We didn't and lost two points.
"I am happy with the attitude of the team. It's not easy to create chances against Sheffield United but we did. In the second half we didn't do it as much.
"But the points dropped at home - today and in our last match against Crystal Palace - can make the difference in our season.
"Today we had the feeling we can do it better because we dominated part of the game and had chances to win it."
Man of the match - Robert Snodgrass (West Ham)
Much-improved Mousset - the stats
- West Ham have dropped more points from winning positions than any other Premier League side this season (nine).
- In their last Premier League campaign in 2006-07, Sheffield United lost 13 of their 14 away games when conceding the first goal, drawing the other. So far this season, they have earned a draw in all three of their away games when conceding first.
- West Ham have won just one of their last eight home meetings with Sheffield United in all competitions (D6 L1).
- Sheffield United are winless in their past 17 top-flight games in London (D6 L11).
- Mousset has scored as many goals in his seven Premier League appearances for Sheffield United as he did in his 58 games in the competition for Bournemouth (three).
- Snodgrass' opener was just his third Premier League goal for West Ham, and his first in 22 appearances in the competition since netting against Fulham in December 2018.
The Blades host Burnley and the Hammers are at home to Newcastle, both on Saturday 2 November at 15:00 GMT.
- 4BalbuenaBooked at 62mins
- 23DiopBooked at 28mins
- 16NobleSubstituted forFornalsat 78'minutes
- 11SnodgrassSubstituted forAjetiat 86'minutes
- 8Felipe AndersonSubstituted forLanziniat 66'minutes
- 15C Sánchez
- 2BaldockBooked at 58mins
- 16NorwoodSubstituted forMoussetat 63'minutes
- 3StevensBooked at 90mins
- 17McGoldrickSubstituted forBesicat 81'minutes
- 11RobinsonSubstituted forSharpat 54'minutes
- David Coote
- Shots on Target
Second Half ends, West Ham United 1, Sheffield United 1.
Foul by Albian Ajeti (West Ham United).
John Lundstram (Sheffield United) wins a free kick in the defensive half.
Attempt missed. Issa Diop (West Ham United) header from the centre of the box misses to the left. Assisted by Manuel Lanzini following a set piece situation.
Enda Stevens (Sheffield United) is shown the yellow card for a bad foul.
Sébastien Haller (West Ham United) wins a free kick in the attacking half.
Foul by Enda Stevens (Sheffield United).
Attempt missed. Andriy Yarmolenko (West Ham United) left footed shot from outside the box is close, but misses to the right. Assisted by Sébastien Haller.
Corner, Sheffield United. Conceded by Andriy Yarmolenko.
Corner, Sheffield United. Conceded by Fabián Balbuena.
Foul by Sébastien Haller (West Ham United).
George Baldock (Sheffield United) wins a free kick on the right wing.
Substitution, West Ham United. Albian Ajeti replaces Robert Snodgrass.
Corner, West Ham United. Conceded by Chris Basham.
Fabián Balbuena (West Ham United) wins a free kick in the defensive half.
Foul by Billy Sharp (Sheffield United).
Foul by Sébastien Haller (West Ham United).
Chris Basham (Sheffield United) wins a free kick in the defensive half.
Substitution, Sheffield United. Muhamed Besic replaces David McGoldrick.