Sunderland could regret not splashing the cash on one ‘unbelievable’ striker last summer. Sunderland lost Ross Stewart to injury over a year ago now, but still haven’t added a proven Championship goalscorer to their squad since. The Scot left for a hefty £10 million price tag on transfer deadline day and the Black Cats were expected to fill the void with that cash, however they instead brought in Nazariy Rusyn, Mason Burstow, Luis Hemir Semedo and Eliezer Mayenda. The club were eager to invest in the youth and that had so far worked with the likes of Dan Ballard andJack Clarke, but purchasing …