Theo Walcott believes that Arsenal's Premier League title challenge is back on track following a tumultuous start to the season.

The Gunners, who take on league leaders Manchester City on Sunday, came under fire in the first few months of the season due to a number of lacklustre performances.

Despite a disappointing period at the Emirates, Arsenal's fortunes seem to have changed and Walcott believes that it is all down to team unity.

"Our new players needed time to gel, time to settle," The Express quotes Walcott as saying. "They had to get used to the way the club is run. It was always going to take time.

"We had injuries as well. Things were not going our way, but the way we've played in the last few weeks, it's nice to see us move up the table."

Arsenal are now fifth in the table, nine points adrift of Man City.