Watford are one of a number of clubs interested in Lille forward Sofiane Boufal, Sky sources understand.
Swansea have completed the sale of striker Eder to French club Lille for a fee believed to be £3.4m.
Lille are keen to complete the transfer of Swansea striker Eder before Euro 2016, according to the player's agent Mikkel Beck.
Lyon secured a Champions League place for next season after thrashing Monaco 6-1 at Parc Olympique Lyonnais.
Lille's hopes of qualifying for the Europa League suffered a setback as they were held to a goalless draw at home to Angers.
PSG ripped Caen to pieces in a 6-0 thrashing at the Parc des Princes, sending the champions 30 points clear in Ligue 1.
Lyon moved into the Champions League qualification places in Ligue 1 after coming from behind to beat Lorient 3-1 on Sunday.
Marseille lost more ground in their bid to play in Europe next season as a 1-1 draw at Lorient extended their winless run in Ligue 1 to six games.
Ajaccio secured an important 1-1 draw against Bordeaux as they battle to stay in Ligue 1.
Paris Saint-Germain fielded a second-string side and were held 0-0 at home by Montpellier in Ligue 1 on Saturday.
Former champions Montpellier moved further clear of relegation trouble in Ligue 1 on Saturday with a 3-0 win against Lille.
Lyon finished with nine men in a narrow defeat at Lille, while Michy Batshuayi struck late to rescue a point for Marseille.
A much-changed Paris St-Germain saw their run of 16 consecutive wins ended following a 0-0 draw with Lille on Saturday.
Saint-Etienne moved into fourth place in Ligue 1 after a 4-1 victory at Bordeaux on Sunday.
Crystal Palace are bottom of the Europe-wide form table - and only one Premier League team makes the top 10.
PSG set a new record of 33 unbeaten Ligue 1 games with victory over Lorient while Lyon beat in-form Bordeaux.
Lille have signed Swansea striker Eder on loan for the remainder of the season.
Angel Di Maria scored twice as Paris Saint-Germain continued their dominance of Ligue 1 with a 5-1 home win over Angers.
PSG were grateful to Zlatan Ibrahimovic as his second-half goal secured a 1-0 win away to Toulouse in on Saturday.
Marseille were again left frustrated after a 0-0 draw against struggling Guingamp extended their winless run at home to eight.