
His first competitive minutes for Swansea came at Old Trafford on 16 August 2014, on for Nathan Dyer after 67 minutes of a 2-1 win over Manchester United. He went to the 2014 World Cup, won the Copa MX with Morelia in the Apertura of 2013 and took Pan American gold with Ecuador's under-20s in 2007, finishing with 10 goals in 64 caps. Career record: 64 caps and 10 goals for Ecuador; club career at Independiente del Valle, Club Atlético Morelia, Swansea City A.F.C..
| 2007–2007 | Club Sport Emelec |
| 2008–2009 | Dorados de Sinaloa |
| 2008–2009 | Independiente del Valle |
| 2010–2012 | Villarreal CF |
| 2011–2012 | Real Betis Balompié |
| 2011–2011 | Levante UD |
| 2012–2014 | Club Atlético Morelia |
| 2014–2020 | Swansea City A.F.C. |
| 2017–2018 | Getafe CF |
| 2018–2018 | Club Sport Emelec |
| 2019–2019 | West Bromwich Albion |
| 2019–2020 | Birmingham City |
| Ecuador | 64 caps, 10 goals |
Ecuador legends whose careers overlapped Montero's
One rank above: Jaime Iván Kaviedes at #14.
One rank below: Piero Hincapié at #16.
Ecuador's editorial top five: Alberto Spencer · Antonio Valencia · Willian Pacho · Álex Aguinaga · Enner Valencia.