Please see the following sentence:
It is not much difficult to bend a free kick round a wall of defenders.
I am not sure which of the following meanings of the word "round" fits here:
adv. 1. In a circular progression or movement; around. 2. With revolutions: wheels moving round. 3. To a specific place or person: called round for the pastor; sent round for the veterinarian.
prep. 1. Around. 2. From the beginning to the end of; throughout: a plant that grows round the year.