Roberto Martinez says he has allowed Nikica Jelavic to hold talks with Hull City because he didn't want to stand in the way of the striker's World Cup dream.
Jelavic was granted permission to discuss personal terms with the Tigers on Friday night after the Clubs agreed an undisclosed fee.
And speaking after Everton's 2-0 win over Norwich City on Saturday, Martinez told evertontv: "We've agreed terms with Hull City and obviously that's why Niki has been allowed to speak to them about personal terms and to decide if it's the right move.
"I've said before that Niki has been a terrific professional from day one and has been working really, really hard and on the pitch and has been giving us always something different to the side.
"But I accept his frustration and I understand at this moment of his career the World Cup is just around the corner, and I think it's only right to allow him to make a decision that is going to benefit him when Brazil arrives.
"From our point of view, if he decides to join another club he's going to go with our blessing and with us wishing him the best of luck. I'm sure every Everton fan will share my point of view in that respect."