Manchester United and Chelsea are showing interest in Porto striker Jackson Martinez.
The Daily Mail says the Colombia striker was suspended for Porto's Europa League tie at Sevilla on Thursday but United watched him in the first leg.
The 27-year-old is not top of either club's list but he is an option they will consider if they don't get their priority signings.
United will watch Eliaquim Mangala, Fernando and Sevilla's Alberto Moreno in the Europa League tie
