By Sean Walsh & Ben Jacobs Manchester United could end the January transfer window without signing a new striker, though Bayern Munich’s Eric Maxim Choupo-Moting is on their list of targets should they bring in a forward, 90min understands. 90min reported last week Erik ten Hag would like to add another goalscorer to his ranks. However, United are prioritising outgoings during the winter window and it will be difficult for them to move aggressively in the market, at least unless Antony Martial departs. The Red Devils had looked at and enquired about Timo Werner back in November, but they never…