Everton have carried out extensive scouting missions in Portugal this week with staff sent to games in the Champions League and Europa League, according to O Jogo (via Sport Witness).

It is claimed the Toffees had scouts in attendance at SL Benfica's Champions League win over Olympique Lyonnais on Wednesday night and at FC Porto's Europa League clash with Rangers on Thursday.

Everton are alleged to have frequently scouted Porto's fixtures this term, as they continue to monitor the Liga NOS outfit for potential targets that could make the switch to the Premier League in upcoming windows.

It is not mentioned who the Blues had their eyes on during the week, as the Goodison Park outfit observed Rangers hold Porto to a point in Group G when Alfredo Morelos equalised moments before the break following a 36th-minute effort from Luis Diaz.

Diaz struck his first-half goal with his only shot of the game, but the 22-year-old left-midfielder struggled to offer much else going forward or in defence, with no key passes, dribbles, tackles or successful aerial duels recorded against Steven Gerrard's Ibrox natives, according to data collected by WhoScored.

Porto's full-backs Alex Telles and Corona were among the most creative players, though, with the Brazilian left-back penning a joint-game high three and his Mexican colleague recording two.

Scouts from AS Saint Etienne, Stade Rennais, AS Monaco, OGC Nice, Girondins Bordeaux, Manchester United, Tottenham Hotspur, Crystal Palace, Atalanta BC, SPAL, Celta Vigo, Real Betis, Eintracht Frankfurt and FC Schalke 04 were also in attendance at the Estadio do Dragao.

Everton also scouted Benfica's Champions League clash with Lyon on Wednesday night, where goals from Rafa Silva and Pizzi either side of a sole effort from Memphis Depay decided the Group G contest in favour of the hosts.

Both Pizzi and Rafa hit two shots in the UEFA contest while Depay struck three, with the former Manchester United forward also leading the game for chances created with four key passes (WhoScored).

It will remain to be seen who Everton were monitoring during the week, but the Blues' scouts would likely have been impressed by what Porto's Corona was capable of in attack from right-back against Rangers.

The 26-year-old completed both of his two attempted dribbles up against Gerrard's Scottish side, as well as playing a game-high 90 passes, of which 39 were made in the final third and nine resulted in crosses into the box.

Everton's scouts would also have caught eye of Houssem Aouar's performance for Lyon against Benfica despite the Ligue 1 side's defeat, as the central midfielder turned one of his 47 passes into a key ball, was successful with five of his ten dribbles, took possession with three of his five tackles, and made one interception and one block.

The 21-year-old would be an expensive player to target, though, as Lyon value the France U21 international at £40million (L'Equipe, via Daily Mail) and he has attracted interest from Manchester City, Liverpool, Chelsea and Arsenal in the past.

Everton fans, would you target any of the players to have featured for Porto, Benfica, Lyon or Rangers this week? Let us know in the comments below…