As more people who purchased Moscow Mules from a Bucks party outside the Fiserv Forum came forward to complain their drinks were tainted, the team said Sunday it has sent samples to an independent lab for testing.

The Bucks also removed all pre-batched cocktails from Fiserv Forum menus and are conducting additional training for employees to reinforce serving safe alcohol.

Team spokesman Barry Baum said Sunday that an initial investigation has not revealed any foreign substances added to the Moscow Mule beverages sold from a tent outside the arena.

"Out of an abundance of caution we are proactively engaging an independent accredited laboratory to ensure the accuracy of our initial investigatory findings and have sent a sample to the Milwaukee Police Department," Baum said in an email.

Anna Neuberg said Sunday she thought the Moscow Mule she purchased for $7, which included a souvenir Bucks mug, didn't taste right. She said she bought the drink around 6:40 p.m. on Wednesday

"I had one of those and I only had one and it was probably the most drunk I've ever been in my life," Neuberg said in a phone interview.

She said she has no memory of the rest of the evening even though she took an Uber with friends to Real Chili for dinner.

"It all just happened so fast. It all just kind of went blurry," said Neuberg. "I figured I just hadn't eaten enough that day."

Her boyfriend sent her a link to a Milwaukee Journal Sentinel story about complaints over the Moscow Mule drinks and told her "Cclearly something was off and I've never seen you act like that before," she said.

Hundreds of people celebrated outside Fiserv Forum on Wednesday night as the team clinched a spot in the Eastern Conference finals with a victory of the Boston Celtics. The Moscow Mule drinks were served from a white tent with an "Absolut" vodka sign and were poured from a tapper.

Moscow Mules are made from vodka, spicy ginger beer and lime and are usually served in a copper mug with ice and garnished with a sprig of mint and lime wedge. At an outdoor event like the Bucks party, the drinks were served in plastic Mason Jjar-like containers.

At least half a dozen people complained to Milwaukee media outlets over the weekend about the Moscow Mules they drank Wednesday night. Some said they saw double, some said they blacked out, others said they had no memories for of the rest of the night.

Neuburg said Moscow Mules are her drink of choice and noticed the cocktail she purchased Wednesday night wasn't fizzy like a Moscow Mule made from ginger beer.

"I laid down that night and the room was just spinning. I've never gotten drunk off one drink in my life," she said.

Follow the Milwaukee Journal Sentinel's Meg Jones on Twitter and Instagram at @MegJonesJS.