Attacking midfielder Marco Reus has excelled with Borussia Dortmund. Reuters

After a very quiet summer transfer session, renewed pressure on Arsenal may be building as the north London club seeks their first Premier League title since their magical 2003-2004 season. With Manchester City undefeated and adding reinforcements, Arsenal may have no choice but to upgrade their squad in January, and a few prominent players were linked to the Gunners after the summer deadlined closed on Tuesday.

Borussia Dortmund attacking midfielder Marco Reus may be poised to leave the Bundesliga, and Arsenal and Real Madrid are among his suitors, reports the Express. This has not been the first time Reus has been linked to Arsenal, but Arsene Wenger may be inclined to step up his pursuit if Arsenal struggle with their attack. Reus, 26, reportedly removed a release clause in his contract, which has sparked speculation that he has an interest in leaving Dortmund.

Though Arsenal have a rather crowded midfield, the versatile Reus could be used as another forward or as a winger. He is in his prime years and has already scored 39 goals in 84 appearances with Dortmund after scoring 36 in 97 appearances with Borussia Monchengladbach. Reus is expected to come at heavy price, and there will be plenty of competition to land his signature. Manchester United have also shown interest in Reus, according to Daily Star.

The Express also reported that Arsenal may make a more serious push at landing Edinson Cavani. Many believe that Arsenal should upgrade their forward position with Olivier Giroud and Danny Welbeck not considered world-class goal scorers for a club with Premier League and Champions League aspirations, and Cavani would fit the bill for the Gunners. But the Paris Saint-Germain striker has been linked to multiple clubs over the summer, and his £45-million price tag might be too steep for most clubs. The 28-year-old also reportedly earns £160,000 a week, which is almost certainly out of Arsenal's pay range.

While Cavani's possible move from Paris to London may be fraught with obstacles, his possible transfer has at least a hint of merit. The Telegraph reported that Simone Zaza is on Arsenal's "most-wanted list" and at a price of £22 million in January. The Juventus forward has yet to play a match for the club this year after signing on in July from Sassuolo for about 18 million euros (£13.1 million). The very idea that the Champions League finalists would immediately have buyers' remorse seems like a preposterous stretch.