Manchester United defender Lisandro Martinez has criticised the club's board for a perceived lack of investment this summer, after the team were beaten 2-0 by Atletico Madrid in the Champions League on Tuesday.
United are winless in five games across all competitions and have made their worst start to a league season in 40 years.
"Really poor," Martinez told Amazon Prime when asked about the team's performance. "I have to control myself a lot but sometimes it is a reflection, or mirror, of how our club is at the moment."
The Argentina international said he "100 percent" expected more investment in the squad over the summer after United finished third in the Premier League last season and returned to Europe's top competition.
"I expect more from our technical director [Jason Wilcox], I have to be honest," he said. "As players we have to do more, but it is also important when you make a strong squad to be ready for these kind of nights."
Martinez said last season the club had "created the base to create an amazing team" but had not followed through. He suggested sacking coach Michael Carrick, who is under mounting pressure after five games without a win, was not the answer.
"You can't keep changing, changing, changing the manager. What about other areas? I can't say more," Martinez said. "Tonight it is easy to say the coach, easy to say the players, but also we have to see other areas."
United spent around 140 million pounds ($185m) this summer on midfielders Carlos Baleba, Youri Tielemans and Andrey Santos, but fans were upset the club did not reinforce other positions, including left-back and striker. Minority owner Jim Ratcliffe was at the stadium to watch the defeat.
Carrick, asked about Martinez's remarks after the game, said he had not heard them and so could not judge them. "I think it's a little bit on the emotions of the game as well, of coming here and being disappointed not to get something from the game," he said.
Former United and England striker Wayne Rooney said the criticism went too far. "I think he's maybe gone a bit too far, and that should have stayed internal," Rooney told Amazon Prime. "You can clearly see that he cares and he wants the club to invest more money in more players, and to do that he's probably one of the players who'll be out the door if I'm being honest."