Heat the oven to 200c/fan 180c/gas 6. Rub the pork all over with 1 tsp olive oil and the paprika and season really well. Quickly brown all over in a non-stick pan.
Toss the sweet potatoes in 1 tsp olive oil and season. Put the pork and potatoes on a large non-stick baking tray and cook in the oven for 25 minutes until the wedges are tender and the pork is cooked. Mix the yoghurt and chives. Slice the pork and serve with wedges, salad and yoghurt.