Colombia go marching on.They may not be the most celebrated South American representative at this World Cup but Nestor Lorenzo’s side are quietly building a formidable reputation and should be considered a serious threat at this tournament.They defeated Ghana 1-0 on Friday, but that scoreline did not reflect their dominance as they secured a place in the last 16. They will face Switzerland in Vancouver on Tuesday.Oliver Kay and Thom Harris dissect the big talking points from Kansas City.How far can Colombia go?It hasn’t been easy to judge the leading teams so far at this World Cup, since the 48-team format and the seeding system have large kept them apart.But Colombia won their first two matches and then dominated Portugal (albeit in a 0-0 draw) in their final group game. The positive impression made to this point in the group stage was strengthened by another assured performance to beat Ghana more comfortably than the scoreline suggests.How good are they? Good enough to be considered favourites to beat Switzerland in the round of 16. Good enough, perhaps, to feel they could trouble Argentina if it ends up an all South American quarter-final. They have only reached the quarter-finals once before — in Brazil in 2014 — but that looks like a realistic objective for an experienced team with a strong defence and incisive attacking players like Luis Diaz, in particular.If there is a concern, it is that they have not scored as many goals as their performances have merited. They dominated possession against DR Congo but were grateful to win 1-0 thanks to a deflected goal in the 76th minute. They had 26 attempts on goal against Portugal but drew 0-0. Here they took an early lead but were not ruthless enough to kill off Ghana’s hopes completely. That is something to work on.Oliver KayHow are Colombia fans taking over World Cup stadiums?Colombia’s players must have known from the moment they approached their hotel on Thursday afternoon that this was going to feel like another home game.