Thursday's contest followed a similar pattern to Chelsea's previous Conference League games at Stamford Bridge this season, although the first half was not as straightforward as Maresca and his players might have anticipated. Not initially, at any rate.
Despite having the lion's share of the ball, the home side were almost caught out on the counter-attack when Kenny twice went close to netting for a fifth consecutive Conference League match.
After failing to make contact with Burns' low-delivery with the score still goalless, the Celtic loanee was denied by a flying Filip Jorgensen save not long after Guiu's opener.
Poom's equaliser was a jolt for the hosts, but there was no looking back once Spanish youngster Guiu capitalised on another error in the Rovers defence to restore Chelsea's advantage.
Dewsbury-Hall all but ended the game as a contest, before Guiu – who struck twice in last week's 3-1 victory at Astana – scored his sixth European goal of the campaign with a well-taken header.
Unsurprisingly perhaps, Maresca's team eased off in the second half but still had chances to add to their lead after Cucurella's effort, with Joao Felix flashing a shot wide moments after replacing Guiu on the hour mark.
The outstanding Tyrique George also had a shot blocked, before Jorgensen denied Graham Burke a late consolation with a smart stop.
Despite seeing their unbeaten Conference League run come to an end at Stamford Bridge, Rovers end their league phase campaign with their heads held high and can look forward to continuing their European journey in the new year.
