Southampton boss Ronald Koeman says he won't rush Charlie Austin's introduction.

The 26-year-old striker had not played for QPR since mid-December due to a hamstring injury, but he had been back in training with the Hoops prior to completing his £4m switch to St Mary's on Saturday.

"We'll see what his physical state is because he is just coming back from a hamstring injury," said Koeman.

"On Monday and Tuesday we will do tests about his fitness. Then we will know how fit the player is, whether he is close to being part of the team or if he needs more time to be 100 per cent.

"The most important thing is that he has no problems about his fitness and that he is physically ready to be part of the team."