Sampdoria coach Walter Zenga was delighted with two-goal Eder after their draw with Napoli.
Eder is being linked with Inter Milan on deadline day.
“We want him to stay. We've found the key to playing in a certain way and we can have fun this season," said Zenga.
“I have a group of professionals who leave other problems outside of the locker room. I will say I'm happy the transfer deadline is tomorrow."