West Ham captain Mark Noble has urged their supporters to stay positive after a difficult start to the campaign.
The Hammers have lost three of their four Premier League games so far this season, and suffered a 4-2 defeat to Watford at London Stadium on Saturday.
West Ham were 2-0 up in that game after just 33 minutes but capitulated to fall to 17th in the Premier League table.
The game was also played before a backdrop of trouble in the stands, where 10 supporters were ejected and nearly 100 complaints were made over standing in seated areas and anti-social behaviour.
But Noble feels now is the time for unity and said: "That is the best we have played for a long while, in the first half. A couple of mistakes have cost us and we couldn't recover.
"If we can go in 2-0 up at half-time it is a different game, but the mistakes have cost us in the end.
"There is a long way to go and we have to stay positive."
Noble is also confident things will improve when key players such as Dimitri Payet and Manuel Lanzini are back at full fitness after injury.
"We have still got new players coming in learning the league and we have a lot of players in their second season," he said.
"We have got players coming back from injury like Manu and Dimi.
"We have got to take the positives and we played fantastic in the first half, but we conceded silly goals."