Arjen Robben believes Bayern Munich need to bring in up to three new first-team players if they are to succeed next season.
Robben, 27, has already said he intends to remain at Bayern regardless of whether they qualify for the Champions League, but he has stressed that he wants to see real investment in the team over the summer.
"We have seen this season that we could do with two or three new players," he told Sport Bild. "I'm not talking about players to improve the squad but players for the first team.
"Bayern are a top club and we need top players. Reinforcements are always important at a club like this. If we can get top players to help us, I think that's always going to be a good thing."
Robben believes the departure of compatriot Mark van Bommel, 34, to AC Milan in January was a mistake as he feels that, despite the presence of captain Philipp Lahm and vice-captain Bastian Schweinsteiger, Bayern lack authority on the field.
"We have our captains, but Mark was a true leader," he said. "We are missing him now."