Ford fiesta V 1.25 16v 2006 Oxygen Sensor Location

Good afternoon all,

Just wondering if someone can tell me or show a picture of where the Lambda (oxygen) sensor would be for my car, ford fiesta V 1.25 16v 2006. Ive been told it needs changing but am unable to locate it myself atm. I service the car and motorbike so im quite capable to do the job myself just want a rough idea as im new to cars recently.

Thanks in advance

Ashley