We take a closer look at Boro’s 3-1 win at the Peninsula Stadium, who shone, who struggled and what the managers made of the match. Scroll down and flick through our gallery to relive the key moments and to see who impressed against the EFL newcomers:
1. Good day: Hayden Coulson
With captain George Friend still returning to full fitness, Coulson received another chance to impress here. The 21-year-old took his opportunity with both hands, providing a regular outlet on the left flank. Coulson's performances this summer will surely put him in contention to start in Boro's Championship opener at Luton next month. Photo: FRANK REID
2. Bad day: Ryan Shotton
Woodgate has said he will look to bring in a replacement for defender Aden Flint who left for Cardiff last week. Yet Shotton hasn't looked convincing in a centre-back role this summer and Boro once again looked vulnerable at the back. Photo: FRANK REID
3. Key moment: Assombalonga puts Boro ahead
After drawing level in the 35th minute, Boro took the lead on the stroke of half-time. It was a stunning finish from Assombalonga who side-footed the ball home first time on the volley from just inside the penalty area. Photo: Tony Marshall
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4. How Boro lined-up
Woodgate deployed his favoured 4-3-3 system as Adam Clayton returned to the holding midfield role with Paddy McNair and Lewis Wing operating in front of him. Marvin Johnson started on the right with Ashley Fletcher on the left. The latter was moved into the centre following Assombalonga's withdrawal on 66 minutes. Photo: FRANK REID