West Ham United Joint-Chairman David Sullivan says manager Slaven Bilic is content with the transfer business the Hammers have done this summer.

Five new faces were added to the squad during pre-season, with over 600 Premier League appearances between four of them.

And whilst the Hammers' start to the season has been a frustrating one, Sullivan says the Board have worked closely with Bilic to secure his desired players, and both are confident that results will soon come.

"Overall Slaven is happy with the business we have done during the summer transfer window," he told whufc.com. "We received the manager's wish-list before the window opened and we have managed to get the top four players on it.

"It is no secret that we made a club record bid for Sporting Lisbon’s William Carvalho but unfortunately that offer was rejected a couple of weeks ago.

"Late last night Sporting Lisbon made contact to accept the original offer, but unfortunately it was just too late in the day, and we simply did not have enough time to put the player through a medical.

"We were not prepared, as a club, to buy a player for that amount of money without him having gone through adequate medical checks.

"Grzegorz Krychowiak and Renato Sanches were both offered to the manager before their switches elsewhere, but he told us that he is happy with the squad he has.

"As a Board we are behind Slaven, and he believes he has the tools to turn around our form and rectify our disappointing start to the season."