The simplest way to display an image for a certain time?

Hello, I'm stuck for a day in my game. It's a fight to death multiplayer, everything is on it's place but I can't display who won.

public class PlayerController : MonoBehaviour { public Rigidbody player; public Rigidbody player2; public float forwardForce = 2000f; public float sideForce = 500f; public Quaternion originalRotationValue; float rotationResetSpeed = 1.0f; public static bool Playable; public Transform inGameCanvas; public Transform player1Wins; public Transform player2Wins; int hide = 0; // Use this for initialization public void Start () { originalRotationValue = transform.rotation;

 }

 // Update is called once per frame

 public void FixedUpdate()
 {
     if (hide <= 0)
     { 
     }
     else
     {
         hide--;
     }
     //I got this but I don't know If it's going work
     if (Playable) {
         inGameCanvas.gameObject.SetActive(true);
         if (Input.GetKey("right"))
         {
             player2.AddForce(sideForce * Time.deltaTime, 0, 0);
         }
         if (Input.GetKey("left"))
         {
             player2.AddForce(-sideForce * Time.deltaTime, 0, 0);
         }
         if (Input.GetKey("up"))
         {
             player2.AddForce(0, 0, sideForce * Time.deltaTime);
         }
         if (Input.GetKey("down"))
         {
             player2.AddForce(0, 0, -sideForce * Time.deltaTime);
         }
         if (Input.GetKey("d"))
         {
             player.AddForce(sideForce * Time.deltaTime, 0, 0);
         }
         if (Input.GetKey("a"))
         {
             player.AddForce(-sideForce * Time.deltaTime, 0, 0);
         }
         if (Input.GetKey("w"))
         {
             player.AddForce(0, 0, sideForce * Time.deltaTime);
         }
         if (Input.GetKey("s"))
         {
             player.AddForce(0, 0, -sideForce * Time.deltaTime);
         }
         if (player.position.y < -10 || player2.position.y < -10) {
             if (player.position.y < -10)
             {
                 player1Wins.gameObject.SetActive(true);
             }
             if (player2.position.y < -10)
             {
                 player2Wins.gameObject.SetActive(true);
             }
             player.transform.position = new Vector3(-3, 1.15f, 0.5f);
             player2.transform.position = new Vector3(3, 1.15f, 0.5f);
             player2.velocity = Vector3.zero;
             player2.angularVelocity = Vector3.zero;
             player.velocity = Vector3.zero;
             player.angularVelocity = Vector3.zero;
             player2.transform.rotation = Quaternion.Slerp(transform.rotation, originalRotationValue, Time.time * rotationResetSpeed);
             player.transform.rotation = Quaternion.Slerp(transform.rotation, originalRotationValue, Time.time * rotationResetSpeed);
             hide = 150;
         }
     }

     
 }
 
 
 

}